Home / 880,972.20-1,321,803.90-320,063.40

Finding the Fourth Proportional to 880,972.20, 1,321,803.90 and 320,063.40

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Solution

The fourth proportional to 880,972.20, 1,321,803.90 and 320,063.40 is: 480,220.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,972.20 : 1,321,803.90 = 320,063.40 : x
  2. Step 2: Convert to fraction form
    880,972.20/1,321,803.90 = 320,063.40/x
  3. Step 3: Cross multiply
    880,972.20x = 1,321,803.90 × 320,063.40
  4. Step 4: Simplify right side
    880,972.20x = 423,061,050,367.26
  5. Step 5: Solve for x
    x = 423,061,050,367.26/880,972.20
  6. Step 6: Final answer
    x = 480,220.66

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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.