Home / 1,252,461.88-1,728,390.16-679,489.75

Finding the Fourth Proportional to 1,252,461.88, 1,728,390.16 and 679,489.75

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Solution

The fourth proportional to 1,252,461.88, 1,728,390.16 and 679,489.75 is: 937,691.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,461.88 : 1,728,390.16 = 679,489.75 : x
  2. Step 2: Convert to fraction form
    1,252,461.88/1,728,390.16 = 679,489.75/x
  3. Step 3: Cross multiply
    1,252,461.88x = 1,728,390.16 × 679,489.75
  4. Step 4: Simplify right side
    1,252,461.88x = 1,174,423,397,720.86
  5. Step 5: Solve for x
    x = 1,174,423,397,720.86/1,252,461.88
  6. Step 6: Final answer
    x = 937,691.93

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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.