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Finding the Fourth Proportional to 540,354.06, 745,691.09 and 295,343.87

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Solution

The fourth proportional to 540,354.06, 745,691.09 and 295,343.87 is: 407,575.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,354.06 : 745,691.09 = 295,343.87 : x
  2. Step 2: Convert to fraction form
    540,354.06/745,691.09 = 295,343.87/x
  3. Step 3: Cross multiply
    540,354.06x = 745,691.09 × 295,343.87
  4. Step 4: Simplify right side
    540,354.06x = 220,235,287,139.94
  5. Step 5: Solve for x
    x = 220,235,287,139.94/540,354.06
  6. Step 6: Final answer
    x = 407,575.89

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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.