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Finding the Fourth Proportional to 506,279.74, 759,699.78 and 303,377.38

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Solution

The fourth proportional to 506,279.74, 759,699.78 and 303,377.38 is: 455,233.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,279.74 : 759,699.78 = 303,377.38 : x
  2. Step 2: Convert to fraction form
    506,279.74/759,699.78 = 303,377.38/x
  3. Step 3: Cross multiply
    506,279.74x = 759,699.78 × 303,377.38
  4. Step 4: Simplify right side
    506,279.74x = 230,475,728,842.98
  5. Step 5: Solve for x
    x = 230,475,728,842.98/506,279.74
  6. Step 6: Final answer
    x = 455,233.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.