Home / 907,649.66-1,252,546.20-499,743.15

Finding the Fourth Proportional to 907,649.66, 1,252,546.20 and 499,743.15

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Solution

The fourth proportional to 907,649.66, 1,252,546.20 and 499,743.15 is: 689,639.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,649.66 : 1,252,546.20 = 499,743.15 : x
  2. Step 2: Convert to fraction form
    907,649.66/1,252,546.20 = 499,743.15/x
  3. Step 3: Cross multiply
    907,649.66x = 1,252,546.20 × 499,743.15
  4. Step 4: Simplify right side
    907,649.66x = 625,951,383,508.53
  5. Step 5: Solve for x
    x = 625,951,383,508.53/907,649.66
  6. Step 6: Final answer
    x = 689,639.86

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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.