Home / 447,999.20-671,998.80-437,631.20

Finding the Fourth Proportional to 447,999.20, 671,998.80 and 437,631.20

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Solution

The fourth proportional to 447,999.20, 671,998.80 and 437,631.20 is: 656,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,999.20 : 671,998.80 = 437,631.20 : x
  2. Step 2: Convert to fraction form
    447,999.20/671,998.80 = 437,631.20/x
  3. Step 3: Cross multiply
    447,999.20x = 671,998.80 × 437,631.20
  4. Step 4: Simplify right side
    447,999.20x = 294,087,641,242.56
  5. Step 5: Solve for x
    x = 294,087,641,242.56/447,999.20
  6. Step 6: Final answer
    x = 656,446.80

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Similar ratio
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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.