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Finding the Fourth Proportional to 386,822.88, 581,123.88 and 274,775.76

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Solution

The fourth proportional to 386,822.88, 581,123.88 and 274,775.76 is: 412,795.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,822.88 : 581,123.88 = 274,775.76 : x
  2. Step 2: Convert to fraction form
    386,822.88/581,123.88 = 274,775.76/x
  3. Step 3: Cross multiply
    386,822.88x = 581,123.88 × 274,775.76
  4. Step 4: Simplify right side
    386,822.88x = 159,678,755,781.15
  5. Step 5: Solve for x
    x = 159,678,755,781.15/386,822.88
  6. Step 6: Final answer
    x = 412,795.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.