Home / 770,603.60-1,155,905.40-271,902.80

Finding the Fourth Proportional to 770,603.60, 1,155,905.40 and 271,902.80

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Solution

The fourth proportional to 770,603.60, 1,155,905.40 and 271,902.80 is: 407,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,603.60 : 1,155,905.40 = 271,902.80 : x
  2. Step 2: Convert to fraction form
    770,603.60/1,155,905.40 = 271,902.80/x
  3. Step 3: Cross multiply
    770,603.60x = 1,155,905.40 × 271,902.80
  4. Step 4: Simplify right side
    770,603.60x = 314,293,914,795.12
  5. Step 5: Solve for x
    x = 314,293,914,795.12/770,603.60
  6. Step 6: Final answer
    x = 407,854.20

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Similar ratio
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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.