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Finding the Fourth Proportional to 999,479.72, 1,379,292.90 and 546,761

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Solution

The fourth proportional to 999,479.72, 1,379,292.90 and 546,761 is: 754,536.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,479.72 : 1,379,292.90 = 546,761 : x
  2. Step 2: Convert to fraction form
    999,479.72/1,379,292.90 = 546,761/x
  3. Step 3: Cross multiply
    999,479.72x = 1,379,292.90 × 546,761
  4. Step 4: Simplify right side
    999,479.72x = 754,143,565,296.90
  5. Step 5: Solve for x
    x = 754,143,565,296.90/999,479.72
  6. Step 6: Final answer
    x = 754,536.14

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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.