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Finding the Fourth Proportional to 503,412.73, 694,740.58 and 288,585.10

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Solution

The fourth proportional to 503,412.73, 694,740.58 and 288,585.10 is: 398,265.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,412.73 : 694,740.58 = 288,585.10 : x
  2. Step 2: Convert to fraction form
    503,412.73/694,740.58 = 288,585.10/x
  3. Step 3: Cross multiply
    503,412.73x = 694,740.58 × 288,585.10
  4. Step 4: Simplify right side
    503,412.73x = 200,491,779,753.36
  5. Step 5: Solve for x
    x = 200,491,779,753.36/503,412.73
  6. Step 6: Final answer
    x = 398,265.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.