Home / 657,637.20-985,909.05-278,848.80

Finding the Fourth Proportional to 657,637.20, 985,909.05 and 278,848.80

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Solution

The fourth proportional to 657,637.20, 985,909.05 and 278,848.80 is: 418,041.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,637.20 : 985,909.05 = 278,848.80 : x
  2. Step 2: Convert to fraction form
    657,637.20/985,909.05 = 278,848.80/x
  3. Step 3: Cross multiply
    657,637.20x = 985,909.05 × 278,848.80
  4. Step 4: Simplify right side
    657,637.20x = 274,919,555,501.64
  5. Step 5: Solve for x
    x = 274,919,555,501.64/657,637.20
  6. Step 6: Final answer
    x = 418,041.37

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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.