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Finding the Fourth Proportional to 999,590.72, 1,379,468.32 and 546,881.92

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Solution

The fourth proportional to 999,590.72, 1,379,468.32 and 546,881.92 is: 754,715.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,590.72 : 1,379,468.32 = 546,881.92 : x
  2. Step 2: Convert to fraction form
    999,590.72/1,379,468.32 = 546,881.92/x
  3. Step 3: Cross multiply
    999,590.72x = 1,379,468.32 × 546,881.92
  4. Step 4: Simplify right side
    999,590.72x = 754,406,283,420.78
  5. Step 5: Solve for x
    x = 754,406,283,420.78/999,590.72
  6. Step 6: Final answer
    x = 754,715.17

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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.