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Finding the Fourth Proportional to 540,476.64, 745,755.12 and 339,181.92

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Solution

The fourth proportional to 540,476.64, 745,755.12 and 339,181.92 is: 468,006.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,476.64 : 745,755.12 = 339,181.92 : x
  2. Step 2: Convert to fraction form
    540,476.64/745,755.12 = 339,181.92/x
  3. Step 3: Cross multiply
    540,476.64x = 745,755.12 × 339,181.92
  4. Step 4: Simplify right side
    540,476.64x = 252,946,653,451.43
  5. Step 5: Solve for x
    x = 252,946,653,451.43/540,476.64
  6. Step 6: Final answer
    x = 468,006.63

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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.