Home / 908,604.47-1,253,882.57-500,720.91

Finding the Fourth Proportional to 908,604.47, 1,253,882.57 and 500,720.91

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Solution

The fourth proportional to 908,604.47, 1,253,882.57 and 500,720.91 is: 690,999.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,604.47 : 1,253,882.57 = 500,720.91 : x
  2. Step 2: Convert to fraction form
    908,604.47/1,253,882.57 = 500,720.91/x
  3. Step 3: Cross multiply
    908,604.47x = 1,253,882.57 × 500,720.91
  4. Step 4: Simplify right side
    908,604.47x = 627,845,218,979.93
  5. Step 5: Solve for x
    x = 627,845,218,979.93/908,604.47
  6. Step 6: Final answer
    x = 690,999.49

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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.