Home / 770,528.20-1,155,795.90-271,892.20

Finding the Fourth Proportional to 770,528.20, 1,155,795.90 and 271,892.20

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Solution

The fourth proportional to 770,528.20, 1,155,795.90 and 271,892.20 is: 407,839.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,528.20 : 1,155,795.90 = 271,892.20 : x
  2. Step 2: Convert to fraction form
    770,528.20/1,155,795.90 = 271,892.20/x
  3. Step 3: Cross multiply
    770,528.20x = 1,155,795.90 × 271,892.20
  4. Step 4: Simplify right side
    770,528.20x = 314,251,890,001.98
  5. Step 5: Solve for x
    x = 314,251,890,001.98/770,528.20
  6. Step 6: Final answer
    x = 407,839.57

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Double scale
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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.