Home / 915,932.62-1,264,138.38-508,165.79

Finding the Fourth Proportional to 915,932.62, 1,264,138.38 and 508,165.79

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Solution

The fourth proportional to 915,932.62, 1,264,138.38 and 508,165.79 is: 701,352.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,932.62 : 1,264,138.38 = 508,165.79 : x
  2. Step 2: Convert to fraction form
    915,932.62/1,264,138.38 = 508,165.79/x
  3. Step 3: Cross multiply
    915,932.62x = 1,264,138.38 × 508,165.79
  4. Step 4: Simplify right side
    915,932.62x = 642,391,878,542.02
  5. Step 5: Solve for x
    x = 642,391,878,542.02/915,932.62
  6. Step 6: Final answer
    x = 701,352.77

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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.