Home / 981,444.51-1,354,399.11-551,720.88

Finding the Fourth Proportional to 981,444.51, 1,354,399.11 and 551,720.88

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Solution

The fourth proportional to 981,444.51, 1,354,399.11 and 551,720.88 is: 761,378.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,444.51 : 1,354,399.11 = 551,720.88 : x
  2. Step 2: Convert to fraction form
    981,444.51/1,354,399.11 = 551,720.88/x
  3. Step 3: Cross multiply
    981,444.51x = 1,354,399.11 × 551,720.88
  4. Step 4: Simplify right side
    981,444.51x = 747,250,268,840.42
  5. Step 5: Solve for x
    x = 747,250,268,840.42/981,444.51
  6. Step 6: Final answer
    x = 761,378.01

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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.