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Finding the Fourth Proportional to 765,737.09, 1,148,605.56 and 204,757.01

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Solution

The fourth proportional to 765,737.09, 1,148,605.56 and 204,757.01 is: 307,135.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,737.09 : 1,148,605.56 = 204,757.01 : x
  2. Step 2: Convert to fraction form
    765,737.09/1,148,605.56 = 204,757.01/x
  3. Step 3: Cross multiply
    765,737.09x = 1,148,605.56 × 204,757.01
  4. Step 4: Simplify right side
    765,737.09x = 235,185,034,391.95
  5. Step 5: Solve for x
    x = 235,185,034,391.95/765,737.09
  6. Step 6: Final answer
    x = 307,135.49

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1.5x scale

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.