Home / 770,505.20-1,155,761.40-271,869.20

Finding the Fourth Proportional to 770,505.20, 1,155,761.40 and 271,869.20

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Solution

The fourth proportional to 770,505.20, 1,155,761.40 and 271,869.20 is: 407,805.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,505.20 : 1,155,761.40 = 271,869.20 : x
  2. Step 2: Convert to fraction form
    770,505.20/1,155,761.40 = 271,869.20/x
  3. Step 3: Cross multiply
    770,505.20x = 1,155,761.40 × 271,869.20
  4. Step 4: Simplify right side
    770,505.20x = 314,215,927,208.88
  5. Step 5: Solve for x
    x = 314,215,927,208.88/770,505.20
  6. Step 6: Final answer
    x = 407,805.07

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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.