Home / 997,738.56-1,376,876.88-545,032.80

Finding the Fourth Proportional to 997,738.56, 1,376,876.88 and 545,032.80

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Solution

The fourth proportional to 997,738.56, 1,376,876.88 and 545,032.80 is: 752,143.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,738.56 : 1,376,876.88 = 545,032.80 : x
  2. Step 2: Convert to fraction form
    997,738.56/1,376,876.88 = 545,032.80/x
  3. Step 3: Cross multiply
    997,738.56x = 1,376,876.88 × 545,032.80
  4. Step 4: Simplify right side
    997,738.56x = 750,443,061,161.66
  5. Step 5: Solve for x
    x = 750,443,061,161.66/997,738.56
  6. Step 6: Final answer
    x = 752,143.99

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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.