Home / 811,508.22-1,119,965.43-467,356.43

Finding the Fourth Proportional to 811,508.22, 1,119,965.43 and 467,356.43

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Solution

The fourth proportional to 811,508.22, 1,119,965.43 and 467,356.43 is: 645,000.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,508.22 : 1,119,965.43 = 467,356.43 : x
  2. Step 2: Convert to fraction form
    811,508.22/1,119,965.43 = 467,356.43/x
  3. Step 3: Cross multiply
    811,508.22x = 1,119,965.43 × 467,356.43
  4. Step 4: Simplify right side
    811,508.22x = 523,423,049,640.72
  5. Step 5: Solve for x
    x = 523,423,049,640.72/811,508.22
  6. Step 6: Final answer
    x = 645,000.31

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1.5x scale

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.