Home / 981,474.32-1,354,482.60-551,889.20

Finding the Fourth Proportional to 981,474.32, 1,354,482.60 and 551,889.20

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Solution

The fourth proportional to 981,474.32, 1,354,482.60 and 551,889.20 is: 761,634.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,474.32 : 1,354,482.60 = 551,889.20 : x
  2. Step 2: Convert to fraction form
    981,474.32/1,354,482.60 = 551,889.20/x
  3. Step 3: Cross multiply
    981,474.32x = 1,354,482.60 × 551,889.20
  4. Step 4: Simplify right side
    981,474.32x = 747,524,318,527.92
  5. Step 5: Solve for x
    x = 747,524,318,527.92/981,474.32
  6. Step 6: Final answer
    x = 761,634.11

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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.