Home / 861,490.53-1,292,161.88-524,443.71

Finding the Fourth Proportional to 861,490.53, 1,292,161.88 and 524,443.71

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Solution

The fourth proportional to 861,490.53, 1,292,161.88 and 524,443.71 is: 786,620.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,490.53 : 1,292,161.88 = 524,443.71 : x
  2. Step 2: Convert to fraction form
    861,490.53/1,292,161.88 = 524,443.71/x
  3. Step 3: Cross multiply
    861,490.53x = 1,292,161.88 × 524,443.71
  4. Step 4: Simplify right side
    861,490.53x = 677,666,167,645.56
  5. Step 5: Solve for x
    x = 677,666,167,645.56/861,490.53
  6. Step 6: Final answer
    x = 786,620.57

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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.