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Finding the Fourth Proportional to 527,626, 729,117.48 and 400,065.04

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Solution

The fourth proportional to 527,626, 729,117.48 and 400,065.04 is: 552,843.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,626 : 729,117.48 = 400,065.04 : x
  2. Step 2: Convert to fraction form
    527,626/729,117.48 = 400,065.04/x
  3. Step 3: Cross multiply
    527,626x = 729,117.48 × 400,065.04
  4. Step 4: Simplify right side
    527,626x = 291,694,413,800.90
  5. Step 5: Solve for x
    x = 291,694,413,800.90/527,626
  6. Step 6: Final answer
    x = 552,843.14

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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.