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Finding the Fourth Proportional to 555,731.04, 766,626.68 and 351,437.90

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Solution

The fourth proportional to 555,731.04, 766,626.68 and 351,437.90 is: 484,805.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,731.04 : 766,626.68 = 351,437.90 : x
  2. Step 2: Convert to fraction form
    555,731.04/766,626.68 = 351,437.90/x
  3. Step 3: Cross multiply
    555,731.04x = 766,626.68 × 351,437.90
  4. Step 4: Simplify right side
    555,731.04x = 269,421,668,745.98
  5. Step 5: Solve for x
    x = 269,421,668,745.98/555,731.04
  6. Step 6: Final answer
    x = 484,805.87

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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.