Home / 999,663.72-1,379,531.77-540,777.16

Finding the Fourth Proportional to 999,663.72, 1,379,531.77 and 540,777.16

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Solution

The fourth proportional to 999,663.72, 1,379,531.77 and 540,777.16 is: 746,270.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,663.72 : 1,379,531.77 = 540,777.16 : x
  2. Step 2: Convert to fraction form
    999,663.72/1,379,531.77 = 540,777.16/x
  3. Step 3: Cross multiply
    999,663.72x = 1,379,531.77 × 540,777.16
  4. Step 4: Simplify right side
    999,663.72x = 746,019,273,082.85
  5. Step 5: Solve for x
    x = 746,019,273,082.85/999,663.72
  6. Step 6: Final answer
    x = 746,270.23

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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.