Home / 693,549.40-1,040,352.90-220,221.40

Finding the Fourth Proportional to 693,549.40, 1,040,352.90 and 220,221.40

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Solution

The fourth proportional to 693,549.40, 1,040,352.90 and 220,221.40 is: 330,341.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,549.40 : 1,040,352.90 = 220,221.40 : x
  2. Step 2: Convert to fraction form
    693,549.40/1,040,352.90 = 220,221.40/x
  3. Step 3: Cross multiply
    693,549.40x = 1,040,352.90 × 220,221.40
  4. Step 4: Simplify right side
    693,549.40x = 229,107,972,132.06
  5. Step 5: Solve for x
    x = 229,107,972,132.06/693,549.40
  6. Step 6: Final answer
    x = 330,341.24

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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.