Home / 502,255.75-693,121.30-272,813.48

Finding the Fourth Proportional to 502,255.75, 693,121.30 and 272,813.48

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Solution

The fourth proportional to 502,255.75, 693,121.30 and 272,813.48 is: 376,487.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,255.75 : 693,121.30 = 272,813.48 : x
  2. Step 2: Convert to fraction form
    502,255.75/693,121.30 = 272,813.48/x
  3. Step 3: Cross multiply
    502,255.75x = 693,121.30 × 272,813.48
  4. Step 4: Simplify right side
    502,255.75x = 189,092,830,449.52
  5. Step 5: Solve for x
    x = 189,092,830,449.52/502,255.75
  6. Step 6: Final answer
    x = 376,487.14

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1.5x scale

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.