Home / 981,544.32-1,354,537.04-551,820.80

Finding the Fourth Proportional to 981,544.32, 1,354,537.04 and 551,820.80

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Solution

The fourth proportional to 981,544.32, 1,354,537.04 and 551,820.80 is: 761,516.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,544.32 : 1,354,537.04 = 551,820.80 : x
  2. Step 2: Convert to fraction form
    981,544.32/1,354,537.04 = 551,820.80/x
  3. Step 3: Cross multiply
    981,544.32x = 1,354,537.04 × 551,820.80
  4. Step 4: Simplify right side
    981,544.32x = 747,461,713,042.43
  5. Step 5: Solve for x
    x = 747,461,713,042.43/981,544.32
  6. Step 6: Final answer
    x = 761,516.01

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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.