Home / 864,354.32-1,192,869.24-482,387.36

Finding the Fourth Proportional to 864,354.32, 1,192,869.24 and 482,387.36

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Solution

The fourth proportional to 864,354.32, 1,192,869.24 and 482,387.36 is: 665,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,354.32 : 1,192,869.24 = 482,387.36 : x
  2. Step 2: Convert to fraction form
    864,354.32/1,192,869.24 = 482,387.36/x
  3. Step 3: Cross multiply
    864,354.32x = 1,192,869.24 × 482,387.36
  4. Step 4: Simplify right side
    864,354.32x = 575,425,043,508.81
  5. Step 5: Solve for x
    x = 575,425,043,508.81/864,354.32
  6. Step 6: Final answer
    x = 665,728.20

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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.