Home / 738,122.30-1,107,183.45-675,136.70

Finding the Fourth Proportional to 738,122.30, 1,107,183.45 and 675,136.70

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Solution

The fourth proportional to 738,122.30, 1,107,183.45 and 675,136.70 is: 1,012,705.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,122.30 : 1,107,183.45 = 675,136.70 : x
  2. Step 2: Convert to fraction form
    738,122.30/1,107,183.45 = 675,136.70/x
  3. Step 3: Cross multiply
    738,122.30x = 1,107,183.45 × 675,136.70
  4. Step 4: Simplify right side
    738,122.30x = 747,500,180,727.62
  5. Step 5: Solve for x
    x = 747,500,180,727.62/738,122.30
  6. Step 6: Final answer
    x = 1,012,705.05

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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.