Home / 893,685.40-1,340,106.90-324,665.20

Finding the Fourth Proportional to 893,685.40, 1,340,106.90 and 324,665.20

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Solution

The fourth proportional to 893,685.40, 1,340,106.90 and 324,665.20 is: 486,844.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,685.40 : 1,340,106.90 = 324,665.20 : x
  2. Step 2: Convert to fraction form
    893,685.40/1,340,106.90 = 324,665.20/x
  3. Step 3: Cross multiply
    893,685.40x = 1,340,106.90 × 324,665.20
  4. Step 4: Simplify right side
    893,685.40x = 435,086,074,709.88
  5. Step 5: Solve for x
    x = 435,086,074,709.88/893,685.40
  6. Step 6: Final answer
    x = 486,844.78

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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.