Home / 861,007.20-1,291,510.80-756,031.20

Finding the Fourth Proportional to 861,007.20, 1,291,510.80 and 756,031.20

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Solution

The fourth proportional to 861,007.20, 1,291,510.80 and 756,031.20 is: 1,134,046.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,007.20 : 1,291,510.80 = 756,031.20 : x
  2. Step 2: Convert to fraction form
    861,007.20/1,291,510.80 = 756,031.20/x
  3. Step 3: Cross multiply
    861,007.20x = 1,291,510.80 × 756,031.20
  4. Step 4: Simplify right side
    861,007.20x = 976,422,459,936.96
  5. Step 5: Solve for x
    x = 976,422,459,936.96/861,007.20
  6. Step 6: Final answer
    x = 1,134,046.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.