Home / 770,518.20-1,155,780.90-271,882.20

Finding the Fourth Proportional to 770,518.20, 1,155,780.90 and 271,882.20

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Solution

The fourth proportional to 770,518.20, 1,155,780.90 and 271,882.20 is: 407,824.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,518.20 : 1,155,780.90 = 271,882.20 : x
  2. Step 2: Convert to fraction form
    770,518.20/1,155,780.90 = 271,882.20/x
  3. Step 3: Cross multiply
    770,518.20x = 1,155,780.90 × 271,882.20
  4. Step 4: Simplify right side
    770,518.20x = 314,236,253,809.98
  5. Step 5: Solve for x
    x = 314,236,253,809.98/770,518.20
  6. Step 6: Final answer
    x = 407,824.57

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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.