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Finding the Fourth Proportional to 739,781.80, 1,109,672.70 and 266,482.60

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Solution

The fourth proportional to 739,781.80, 1,109,672.70 and 266,482.60 is: 399,723.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,781.80 : 1,109,672.70 = 266,482.60 : x
  2. Step 2: Convert to fraction form
    739,781.80/1,109,672.70 = 266,482.60/x
  3. Step 3: Cross multiply
    739,781.80x = 1,109,672.70 × 266,482.60
  4. Step 4: Simplify right side
    739,781.80x = 295,708,466,245.02
  5. Step 5: Solve for x
    x = 295,708,466,245.02/739,781.80
  6. Step 6: Final answer
    x = 399,723.90

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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.