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Finding the Fourth Proportional to 720,404.52, 1,079,640.84 and 560,673.32

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Solution

The fourth proportional to 720,404.52, 1,079,640.84 and 560,673.32 is: 840,258.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,404.52 : 1,079,640.84 = 560,673.32 : x
  2. Step 2: Convert to fraction form
    720,404.52/1,079,640.84 = 560,673.32/x
  3. Step 3: Cross multiply
    720,404.52x = 1,079,640.84 × 560,673.32
  4. Step 4: Simplify right side
    720,404.52x = 605,325,814,170.39
  5. Step 5: Solve for x
    x = 605,325,814,170.39/720,404.52
  6. Step 6: Final answer
    x = 840,258.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.