Home / 724,455.90-1,087,072.65-303,774.30

Finding the Fourth Proportional to 724,455.90, 1,087,072.65 and 303,774.30

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Solution

The fourth proportional to 724,455.90, 1,087,072.65 and 303,774.30 is: 455,824.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,455.90 : 1,087,072.65 = 303,774.30 : x
  2. Step 2: Convert to fraction form
    724,455.90/1,087,072.65 = 303,774.30/x
  3. Step 3: Cross multiply
    724,455.90x = 1,087,072.65 × 303,774.30
  4. Step 4: Simplify right side
    724,455.90x = 330,224,733,302.90
  5. Step 5: Solve for x
    x = 330,224,733,302.90/724,455.90
  6. Step 6: Final answer
    x = 455,824.48

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Double scale
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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.