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Finding the Fourth Proportional to 1,262,976, 1,742,906.88 and 726,432

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Solution

The fourth proportional to 1,262,976, 1,742,906.88 and 726,432 is: 1,002,476.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,976 : 1,742,906.88 = 726,432 : x
  2. Step 2: Convert to fraction form
    1,262,976/1,742,906.88 = 726,432/x
  3. Step 3: Cross multiply
    1,262,976x = 1,742,906.88 × 726,432
  4. Step 4: Simplify right side
    1,262,976x = 1,266,103,330,652.16
  5. Step 5: Solve for x
    x = 1,266,103,330,652.16/1,262,976
  6. Step 6: Final answer
    x = 1,002,476.16

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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.