Home / 746,228.70-1,119,343.05-680,910.30

Finding the Fourth Proportional to 746,228.70, 1,119,343.05 and 680,910.30

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Solution

The fourth proportional to 746,228.70, 1,119,343.05 and 680,910.30 is: 1,021,365.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,228.70 : 1,119,343.05 = 680,910.30 : x
  2. Step 2: Convert to fraction form
    746,228.70/1,119,343.05 = 680,910.30/x
  3. Step 3: Cross multiply
    746,228.70x = 1,119,343.05 × 680,910.30
  4. Step 4: Simplify right side
    746,228.70x = 762,172,211,978.42
  5. Step 5: Solve for x
    x = 762,172,211,978.42/746,228.70
  6. Step 6: Final answer
    x = 1,021,365.45

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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.