Home / 981,475.32-1,354,483.98-551,890.20

Finding the Fourth Proportional to 981,475.32, 1,354,483.98 and 551,890.20

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Solution

The fourth proportional to 981,475.32, 1,354,483.98 and 551,890.20 is: 761,635.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,475.32 : 1,354,483.98 = 551,890.20 : x
  2. Step 2: Convert to fraction form
    981,475.32/1,354,483.98 = 551,890.20/x
  3. Step 3: Cross multiply
    981,475.32x = 1,354,483.98 × 551,890.20
  4. Step 4: Simplify right side
    981,475.32x = 747,526,434,619.00
  5. Step 5: Solve for x
    x = 747,526,434,619.00/981,475.32
  6. Step 6: Final answer
    x = 761,635.49

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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.