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Finding the Fourth Proportional to 1,332,572.16, 1,838,952 and 728,960.16

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Solution

The fourth proportional to 1,332,572.16, 1,838,952 and 728,960.16 is: 1,005,966.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,572.16 : 1,838,952 = 728,960.16 : x
  2. Step 2: Convert to fraction form
    1,332,572.16/1,838,952 = 728,960.16/x
  3. Step 3: Cross multiply
    1,332,572.16x = 1,838,952 × 728,960.16
  4. Step 4: Simplify right side
    1,332,572.16x = 1,340,522,744,152.32
  5. Step 5: Solve for x
    x = 1,340,522,744,152.32/1,332,572.16
  6. Step 6: Final answer
    x = 1,005,966.34

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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.