Home / 724,984.20-1,087,476.30-325,816.20

Finding the Fourth Proportional to 724,984.20, 1,087,476.30 and 325,816.20

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Solution

The fourth proportional to 724,984.20, 1,087,476.30 and 325,816.20 is: 488,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,984.20 : 1,087,476.30 = 325,816.20 : x
  2. Step 2: Convert to fraction form
    724,984.20/1,087,476.30 = 325,816.20/x
  3. Step 3: Cross multiply
    724,984.20x = 1,087,476.30 × 325,816.20
  4. Step 4: Simplify right side
    724,984.20x = 354,317,395,656.06
  5. Step 5: Solve for x
    x = 354,317,395,656.06/724,984.20
  6. Step 6: Final answer
    x = 488,724.30

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Half scale
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Double scale
Find fourth proportional to 724,985.20, 1,087,477.80 and 325,817.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.