Home / 723,792.20-1,085,688.30-324,008.60

Finding the Fourth Proportional to 723,792.20, 1,085,688.30 and 324,008.60

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Solution

The fourth proportional to 723,792.20, 1,085,688.30 and 324,008.60 is: 486,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,792.20 : 1,085,688.30 = 324,008.60 : x
  2. Step 2: Convert to fraction form
    723,792.20/1,085,688.30 = 324,008.60/x
  3. Step 3: Cross multiply
    723,792.20x = 1,085,688.30 × 324,008.60
  4. Step 4: Simplify right side
    723,792.20x = 351,772,346,119.38
  5. Step 5: Solve for x
    x = 351,772,346,119.38/723,792.20
  6. Step 6: Final answer
    x = 486,012.90

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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.