Home / 884,435.13-1,220,367.47-521,831.61

Finding the Fourth Proportional to 884,435.13, 1,220,367.47 and 521,831.61

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Solution

The fourth proportional to 884,435.13, 1,220,367.47 and 521,831.61 is: 720,037.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,435.13 : 1,220,367.47 = 521,831.61 : x
  2. Step 2: Convert to fraction form
    884,435.13/1,220,367.47 = 521,831.61/x
  3. Step 3: Cross multiply
    884,435.13x = 1,220,367.47 × 521,831.61
  4. Step 4: Simplify right side
    884,435.13x = 636,826,319,052.57
  5. Step 5: Solve for x
    x = 636,826,319,052.57/884,435.13
  6. Step 6: Final answer
    x = 720,037.34

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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.