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Finding the Fourth Proportional to 723,788.32, 998,867.28 and 469,357.60

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Solution

The fourth proportional to 723,788.32, 998,867.28 and 469,357.60 is: 647,739.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,788.32 : 998,867.28 = 469,357.60 : x
  2. Step 2: Convert to fraction form
    723,788.32/998,867.28 = 469,357.60/x
  3. Step 3: Cross multiply
    723,788.32x = 998,867.28 × 469,357.60
  4. Step 4: Simplify right side
    723,788.32x = 468,825,949,259.33
  5. Step 5: Solve for x
    x = 468,825,949,259.33/723,788.32
  6. Step 6: Final answer
    x = 647,739.04

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Double scale
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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.