Home / 729,145.60-1,094,366.40-429,251.20

Finding the Fourth Proportional to 729,145.60, 1,094,366.40 and 429,251.20

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Solution

The fourth proportional to 729,145.60, 1,094,366.40 and 429,251.20 is: 644,258.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,145.60 : 1,094,366.40 = 429,251.20 : x
  2. Step 2: Convert to fraction form
    729,145.60/1,094,366.40 = 429,251.20/x
  3. Step 3: Cross multiply
    729,145.60x = 1,094,366.40 × 429,251.20
  4. Step 4: Simplify right side
    729,145.60x = 469,758,090,439.68
  5. Step 5: Solve for x
    x = 469,758,090,439.68/729,145.60
  6. Step 6: Final answer
    x = 644,258.28

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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.