Home / 820,160.70-1,230,241.05-607,584.30

Finding the Fourth Proportional to 820,160.70, 1,230,241.05 and 607,584.30

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Solution

The fourth proportional to 820,160.70, 1,230,241.05 and 607,584.30 is: 911,376.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,160.70 : 1,230,241.05 = 607,584.30 : x
  2. Step 2: Convert to fraction form
    820,160.70/1,230,241.05 = 607,584.30/x
  3. Step 3: Cross multiply
    820,160.70x = 1,230,241.05 × 607,584.30
  4. Step 4: Simplify right side
    820,160.70x = 747,475,147,195.52
  5. Step 5: Solve for x
    x = 747,475,147,195.52/820,160.70
  6. Step 6: Final answer
    x = 911,376.45

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Double scale
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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.