Home / 657,010.20-984,968.55-278,221.80

Finding the Fourth Proportional to 657,010.20, 984,968.55 and 278,221.80

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Solution

The fourth proportional to 657,010.20, 984,968.55 and 278,221.80 is: 417,101.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,010.20 : 984,968.55 = 278,221.80 : x
  2. Step 2: Convert to fraction form
    657,010.20/984,968.55 = 278,221.80/x
  3. Step 3: Cross multiply
    657,010.20x = 984,968.55 × 278,221.80
  4. Step 4: Simplify right side
    657,010.20x = 274,039,722,924.39
  5. Step 5: Solve for x
    x = 274,039,722,924.39/657,010.20
  6. Step 6: Final answer
    x = 417,101.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.