Home / 1,120,127.45-1,545,892.52-690,396.53

Finding the Fourth Proportional to 1,120,127.45, 1,545,892.52 and 690,396.53

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Solution

The fourth proportional to 1,120,127.45, 1,545,892.52 and 690,396.53 is: 952,819.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,127.45 : 1,545,892.52 = 690,396.53 : x
  2. Step 2: Convert to fraction form
    1,120,127.45/1,545,892.52 = 690,396.53/x
  3. Step 3: Cross multiply
    1,120,127.45x = 1,545,892.52 × 690,396.53
  4. Step 4: Simplify right side
    1,120,127.45x = 1,067,278,820,379.51
  5. Step 5: Solve for x
    x = 1,067,278,820,379.51/1,120,127.45
  6. Step 6: Final answer
    x = 952,819.10

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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.