Home / 981,471.44-1,354,430.76-551,752.40

Finding the Fourth Proportional to 981,471.44, 1,354,430.76 and 551,752.40

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Solution

The fourth proportional to 981,471.44, 1,354,430.76 and 551,752.40 is: 761,418.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,471.44 : 1,354,430.76 = 551,752.40 : x
  2. Step 2: Convert to fraction form
    981,471.44/1,354,430.76 = 551,752.40/x
  3. Step 3: Cross multiply
    981,471.44x = 1,354,430.76 × 551,752.40
  4. Step 4: Simplify right side
    981,471.44x = 747,310,422,463.82
  5. Step 5: Solve for x
    x = 747,310,422,463.82/981,471.44
  6. Step 6: Final answer
    x = 761,418.41

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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.