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Finding the Fourth Proportional to 630,747.29, 870,544.11 and 376,114.88

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Solution

The fourth proportional to 630,747.29, 870,544.11 and 376,114.88 is: 519,105.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,747.29 : 870,544.11 = 376,114.88 : x
  2. Step 2: Convert to fraction form
    630,747.29/870,544.11 = 376,114.88/x
  3. Step 3: Cross multiply
    630,747.29x = 870,544.11 × 376,114.88
  4. Step 4: Simplify right side
    630,747.29x = 327,424,589,114.64
  5. Step 5: Solve for x
    x = 327,424,589,114.64/630,747.29
  6. Step 6: Final answer
    x = 519,105.82

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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.