Home / 1,225,227.57-1,690,566.17-715,831.53

Finding the Fourth Proportional to 1,225,227.57, 1,690,566.17 and 715,831.53

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Solution

The fourth proportional to 1,225,227.57, 1,690,566.17 and 715,831.53 is: 987,702.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,227.57 : 1,690,566.17 = 715,831.53 : x
  2. Step 2: Convert to fraction form
    1,225,227.57/1,690,566.17 = 715,831.53/x
  3. Step 3: Cross multiply
    1,225,227.57x = 1,690,566.17 × 715,831.53
  4. Step 4: Simplify right side
    1,225,227.57x = 1,210,160,564,458.18
  5. Step 5: Solve for x
    x = 1,210,160,564,458.18/1,225,227.57
  6. Step 6: Final answer
    x = 987,702.69

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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.