Home / 731,138.40-1,008,964.08-408,844.80

Finding the Fourth Proportional to 731,138.40, 1,008,964.08 and 408,844.80

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Solution

The fourth proportional to 731,138.40, 1,008,964.08 and 408,844.80 is: 564,201.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,138.40 : 1,008,964.08 = 408,844.80 : x
  2. Step 2: Convert to fraction form
    731,138.40/1,008,964.08 = 408,844.80/x
  3. Step 3: Cross multiply
    731,138.40x = 1,008,964.08 × 408,844.80
  4. Step 4: Simplify right side
    731,138.40x = 412,509,717,494.78
  5. Step 5: Solve for x
    x = 412,509,717,494.78/731,138.40
  6. Step 6: Final answer
    x = 564,201.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.