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Finding the Fourth Proportional to 479,279.52, 661,418.40 and 264,422.40

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Solution

The fourth proportional to 479,279.52, 661,418.40 and 264,422.40 is: 364,909.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,279.52 : 661,418.40 = 264,422.40 : x
  2. Step 2: Convert to fraction form
    479,279.52/661,418.40 = 264,422.40/x
  3. Step 3: Cross multiply
    479,279.52x = 661,418.40 × 264,422.40
  4. Step 4: Simplify right side
    479,279.52x = 174,893,840,732.16
  5. Step 5: Solve for x
    x = 174,893,840,732.16/479,279.52
  6. Step 6: Final answer
    x = 364,909.90

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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.