Home / 781,662.30-1,172,493.45-738,116.70

Finding the Fourth Proportional to 781,662.30, 1,172,493.45 and 738,116.70

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Solution

The fourth proportional to 781,662.30, 1,172,493.45 and 738,116.70 is: 1,107,175.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,662.30 : 1,172,493.45 = 738,116.70 : x
  2. Step 2: Convert to fraction form
    781,662.30/1,172,493.45 = 738,116.70/x
  3. Step 3: Cross multiply
    781,662.30x = 1,172,493.45 × 738,116.70
  4. Step 4: Simplify right side
    781,662.30x = 865,436,996,085.62
  5. Step 5: Solve for x
    x = 865,436,996,085.62/781,662.30
  6. Step 6: Final answer
    x = 1,107,175.05

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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.