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Finding the Fourth Proportional to 502,464.80, 752,530.80 and 490,800.80

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Solution

The fourth proportional to 502,464.80, 752,530.80 and 490,800.80 is: 735,061.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,464.80 : 752,530.80 = 490,800.80 : x
  2. Step 2: Convert to fraction form
    502,464.80/752,530.80 = 490,800.80/x
  3. Step 3: Cross multiply
    502,464.80x = 752,530.80 × 490,800.80
  4. Step 4: Simplify right side
    502,464.80x = 369,342,718,664.64
  5. Step 5: Solve for x
    x = 369,342,718,664.64/502,464.80
  6. Step 6: Final answer
    x = 735,061.88

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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.