Home / 907,282.66-1,252,040.22-499,375.78

Finding the Fourth Proportional to 907,282.66, 1,252,040.22 and 499,375.78

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Solution

The fourth proportional to 907,282.66, 1,252,040.22 and 499,375.78 is: 689,133.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,282.66 : 1,252,040.22 = 499,375.78 : x
  2. Step 2: Convert to fraction form
    907,282.66/1,252,040.22 = 499,375.78/x
  3. Step 3: Cross multiply
    907,282.66x = 1,252,040.22 × 499,375.78
  4. Step 4: Simplify right side
    907,282.66x = 625,238,561,453.87
  5. Step 5: Solve for x
    x = 625,238,561,453.87/907,282.66
  6. Step 6: Final answer
    x = 689,133.15

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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.