Home / 920,471.82-1,380,098.61-440,770.38

Finding the Fourth Proportional to 920,471.82, 1,380,098.61 and 440,770.38

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Solution

The fourth proportional to 920,471.82, 1,380,098.61 and 440,770.38 is: 660,863.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,471.82 : 1,380,098.61 = 440,770.38 : x
  2. Step 2: Convert to fraction form
    920,471.82/1,380,098.61 = 440,770.38/x
  3. Step 3: Cross multiply
    920,471.82x = 1,380,098.61 × 440,770.38
  4. Step 4: Simplify right side
    920,471.82x = 608,306,588,767.17
  5. Step 5: Solve for x
    x = 608,306,588,767.17/920,471.82
  6. Step 6: Final answer
    x = 660,863.89

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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.