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Finding the Fourth Proportional to 424,446, 585,818.69 and 243,279.38

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Solution

The fourth proportional to 424,446, 585,818.69 and 243,279.38 is: 335,773.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,446 : 585,818.69 = 243,279.38 : x
  2. Step 2: Convert to fraction form
    424,446/585,818.69 = 243,279.38/x
  3. Step 3: Cross multiply
    424,446x = 585,818.69 × 243,279.38
  4. Step 4: Simplify right side
    424,446x = 142,517,603,550.12
  5. Step 5: Solve for x
    x = 142,517,603,550.12/424,446
  6. Step 6: Final answer
    x = 335,773.23

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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.