Home / 840,780.29-1,160,301.48-458,831.72

Finding the Fourth Proportional to 840,780.29, 1,160,301.48 and 458,831.72

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Solution

The fourth proportional to 840,780.29, 1,160,301.48 and 458,831.72 is: 633,201.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,780.29 : 1,160,301.48 = 458,831.72 : x
  2. Step 2: Convert to fraction form
    840,780.29/1,160,301.48 = 458,831.72/x
  3. Step 3: Cross multiply
    840,780.29x = 1,160,301.48 × 458,831.72
  4. Step 4: Simplify right side
    840,780.29x = 532,383,123,786.95
  5. Step 5: Solve for x
    x = 532,383,123,786.95/840,780.29
  6. Step 6: Final answer
    x = 633,201.24

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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.