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Finding the Fourth Proportional to 618,625.34, 853,753.52 and 343,069.48

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Solution

The fourth proportional to 618,625.34, 853,753.52 and 343,069.48 is: 473,463.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,625.34 : 853,753.52 = 343,069.48 : x
  2. Step 2: Convert to fraction form
    618,625.34/853,753.52 = 343,069.48/x
  3. Step 3: Cross multiply
    618,625.34x = 853,753.52 × 343,069.48
  4. Step 4: Simplify right side
    618,625.34x = 292,896,776,154.57
  5. Step 5: Solve for x
    x = 292,896,776,154.57/618,625.34
  6. Step 6: Final answer
    x = 473,463.92

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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.