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Finding the Fourth Proportional to 748,304.92, 1,032,659.04 and 408,775.60

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Solution

The fourth proportional to 748,304.92, 1,032,659.04 and 408,775.60 is: 564,109.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,304.92 : 1,032,659.04 = 408,775.60 : x
  2. Step 2: Convert to fraction form
    748,304.92/1,032,659.04 = 408,775.60/x
  3. Step 3: Cross multiply
    748,304.92x = 1,032,659.04 × 408,775.60
  4. Step 4: Simplify right side
    748,304.92x = 422,125,818,671.42
  5. Step 5: Solve for x
    x = 422,125,818,671.42/748,304.92
  6. Step 6: Final answer
    x = 564,109.37

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Double scale
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Similar ratio
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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.