Home / 970,193.49-1,338,149.78-711,983.21

Finding the Fourth Proportional to 970,193.49, 1,338,149.78 and 711,983.21

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Solution

The fourth proportional to 970,193.49, 1,338,149.78 and 711,983.21 is: 982,010.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,193.49 : 1,338,149.78 = 711,983.21 : x
  2. Step 2: Convert to fraction form
    970,193.49/1,338,149.78 = 711,983.21/x
  3. Step 3: Cross multiply
    970,193.49x = 1,338,149.78 × 711,983.21
  4. Step 4: Simplify right side
    970,193.49x = 952,740,168,244.47
  5. Step 5: Solve for x
    x = 952,740,168,244.47/970,193.49
  6. Step 6: Final answer
    x = 982,010.48

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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.