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Finding the Fourth Proportional to 723,786.32, 998,864.52 and 469,355.60

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Solution

The fourth proportional to 723,786.32, 998,864.52 and 469,355.60 is: 647,736.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,786.32 : 998,864.52 = 469,355.60 : x
  2. Step 2: Convert to fraction form
    723,786.32/998,864.52 = 469,355.60/x
  3. Step 3: Cross multiply
    723,786.32x = 998,864.52 × 469,355.60
  4. Step 4: Simplify right side
    723,786.32x = 468,822,656,103.31
  5. Step 5: Solve for x
    x = 468,822,656,103.31/723,786.32
  6. Step 6: Final answer
    x = 647,736.28

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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.