Home / 465,549.20-698,309.96-128,610.12

Finding the Fourth Proportional to 465,549.20, 698,309.96 and 128,610.12

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Solution

The fourth proportional to 465,549.20, 698,309.96 and 128,610.12 is: 192,911.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,549.20 : 698,309.96 = 128,610.12 : x
  2. Step 2: Convert to fraction form
    465,549.20/698,309.96 = 128,610.12/x
  3. Step 3: Cross multiply
    465,549.20x = 698,309.96 × 128,610.12
  4. Step 4: Simplify right side
    465,549.20x = 89,809,727,109.74
  5. Step 5: Solve for x
    x = 89,809,727,109.74/465,549.20
  6. Step 6: Final answer
    x = 192,911.36

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1.5x scale

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.