Home / 907,660.88-1,252,561.64-499,754.20

Finding the Fourth Proportional to 907,660.88, 1,252,561.64 and 499,754.20

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Solution

The fourth proportional to 907,660.88, 1,252,561.64 and 499,754.20 is: 689,655.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,660.88 : 1,252,561.64 = 499,754.20 : x
  2. Step 2: Convert to fraction form
    907,660.88/1,252,561.64 = 499,754.20/x
  3. Step 3: Cross multiply
    907,660.88x = 1,252,561.64 × 499,754.20
  4. Step 4: Simplify right side
    907,660.88x = 625,972,940,348.89
  5. Step 5: Solve for x
    x = 625,972,940,348.89/907,660.88
  6. Step 6: Final answer
    x = 689,655.08

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1.5x scale

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.