Home / 981,348.08-1,354,403.78-551,663.60

Finding the Fourth Proportional to 981,348.08, 1,354,403.78 and 551,663.60

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Solution

The fourth proportional to 981,348.08, 1,354,403.78 and 551,663.60 is: 761,376.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,348.08 : 1,354,403.78 = 551,663.60 : x
  2. Step 2: Convert to fraction form
    981,348.08/1,354,403.78 = 551,663.60/x
  3. Step 3: Cross multiply
    981,348.08x = 1,354,403.78 × 551,663.60
  4. Step 4: Simplify right side
    981,348.08x = 747,175,255,598.07
  5. Step 5: Solve for x
    x = 747,175,255,598.07/981,348.08
  6. Step 6: Final answer
    x = 761,376.39

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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.