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Finding the Fourth Proportional to 431,379.66, 595,279.17 and 247,579.32

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Solution

The fourth proportional to 431,379.66, 595,279.17 and 247,579.32 is: 341,645.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,379.66 : 595,279.17 = 247,579.32 : x
  2. Step 2: Convert to fraction form
    431,379.66/595,279.17 = 247,579.32/x
  3. Step 3: Cross multiply
    431,379.66x = 595,279.17 × 247,579.32
  4. Step 4: Simplify right side
    431,379.66x = 147,378,812,118.76
  5. Step 5: Solve for x
    x = 147,378,812,118.76/431,379.66
  6. Step 6: Final answer
    x = 341,645.25

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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.