Home / 981,449.01-1,354,405.32-551,725.38

Finding the Fourth Proportional to 981,449.01, 1,354,405.32 and 551,725.38

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Solution

The fourth proportional to 981,449.01, 1,354,405.32 and 551,725.38 is: 761,384.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,449.01 : 1,354,405.32 = 551,725.38 : x
  2. Step 2: Convert to fraction form
    981,449.01/1,354,405.32 = 551,725.38/x
  3. Step 3: Cross multiply
    981,449.01x = 1,354,405.32 × 551,725.38
  4. Step 4: Simplify right side
    981,449.01x = 747,259,789,851.02
  5. Step 5: Solve for x
    x = 747,259,789,851.02/981,449.01
  6. Step 6: Final answer
    x = 761,384.22

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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.