Home / 918,356.10-1,377,227.98-385,777.86

Finding the Fourth Proportional to 918,356.10, 1,377,227.98 and 385,777.86

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Solution

The fourth proportional to 918,356.10, 1,377,227.98 and 385,777.86 is: 578,538.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,356.10 : 1,377,227.98 = 385,777.86 : x
  2. Step 2: Convert to fraction form
    918,356.10/1,377,227.98 = 385,777.86/x
  3. Step 3: Cross multiply
    918,356.10x = 1,377,227.98 × 385,777.86
  4. Step 4: Simplify right side
    918,356.10x = 531,304,062,856.52
  5. Step 5: Solve for x
    x = 531,304,062,856.52/918,356.10
  6. Step 6: Final answer
    x = 578,538.18

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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.