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Finding the Fourth Proportional to 717,268.32, 989,833.14 and 430,793.28

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Solution

The fourth proportional to 717,268.32, 989,833.14 and 430,793.28 is: 594,496.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,268.32 : 989,833.14 = 430,793.28 : x
  2. Step 2: Convert to fraction form
    717,268.32/989,833.14 = 430,793.28/x
  3. Step 3: Cross multiply
    717,268.32x = 989,833.14 × 430,793.28
  4. Step 4: Simplify right side
    717,268.32x = 426,413,465,033.30
  5. Step 5: Solve for x
    x = 426,413,465,033.30/717,268.32
  6. Step 6: Final answer
    x = 594,496.44

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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.