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Finding the Fourth Proportional to 526,318.36, 726,318.78 and 284,600.32

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Solution

The fourth proportional to 526,318.36, 726,318.78 and 284,600.32 is: 392,748.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,318.36 : 726,318.78 = 284,600.32 : x
  2. Step 2: Convert to fraction form
    526,318.36/726,318.78 = 284,600.32/x
  3. Step 3: Cross multiply
    526,318.36x = 726,318.78 × 284,600.32
  4. Step 4: Simplify right side
    526,318.36x = 206,710,557,210.01
  5. Step 5: Solve for x
    x = 206,710,557,210.01/526,318.36
  6. Step 6: Final answer
    x = 392,748.14

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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.