Home / 558,974.40-838,461.60-322,122.30

Finding the Fourth Proportional to 558,974.40, 838,461.60 and 322,122.30

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Solution

The fourth proportional to 558,974.40, 838,461.60 and 322,122.30 is: 483,183.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,974.40 : 838,461.60 = 322,122.30 : x
  2. Step 2: Convert to fraction form
    558,974.40/838,461.60 = 322,122.30/x
  3. Step 3: Cross multiply
    558,974.40x = 838,461.60 × 322,122.30
  4. Step 4: Simplify right side
    558,974.40x = 270,087,179,053.68
  5. Step 5: Solve for x
    x = 270,087,179,053.68/558,974.40
  6. Step 6: Final answer
    x = 483,183.45

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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.