Home / 916,712.52-1,265,044.22-508,790.43

Finding the Fourth Proportional to 916,712.52, 1,265,044.22 and 508,790.43

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Solution

The fourth proportional to 916,712.52, 1,265,044.22 and 508,790.43 is: 702,120.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,712.52 : 1,265,044.22 = 508,790.43 : x
  2. Step 2: Convert to fraction form
    916,712.52/1,265,044.22 = 508,790.43/x
  3. Step 3: Cross multiply
    916,712.52x = 1,265,044.22 × 508,790.43
  4. Step 4: Simplify right side
    916,712.52x = 643,642,390,118.86
  5. Step 5: Solve for x
    x = 643,642,390,118.86/916,712.52
  6. Step 6: Final answer
    x = 702,120.21

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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.