Home / 645,042.20-962,121.12-560,134.66

Finding the Fourth Proportional to 645,042.20, 962,121.12 and 560,134.66

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Solution

The fourth proportional to 645,042.20, 962,121.12 and 560,134.66 is: 835,476.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,042.20 : 962,121.12 = 560,134.66 : x
  2. Step 2: Convert to fraction form
    645,042.20/962,121.12 = 560,134.66/x
  3. Step 3: Cross multiply
    645,042.20x = 962,121.12 × 560,134.66
  4. Step 4: Simplify right side
    645,042.20x = 538,917,386,878.95
  5. Step 5: Solve for x
    x = 538,917,386,878.95/645,042.20
  6. Step 6: Final answer
    x = 835,476.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.