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Finding the Fourth Proportional to 530,999.20, 796,498.80 and 472,938.40

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Solution

The fourth proportional to 530,999.20, 796,498.80 and 472,938.40 is: 709,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,999.20 : 796,498.80 = 472,938.40 : x
  2. Step 2: Convert to fraction form
    530,999.20/796,498.80 = 472,938.40/x
  3. Step 3: Cross multiply
    530,999.20x = 796,498.80 × 472,938.40
  4. Step 4: Simplify right side
    530,999.20x = 376,694,868,073.92
  5. Step 5: Solve for x
    x = 376,694,868,073.92/530,999.20
  6. Step 6: Final answer
    x = 709,407.60

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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.