Home / 930,742.68-1,396,338.39-323,442.75

Finding the Fourth Proportional to 930,742.68, 1,396,338.39 and 323,442.75

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Solution

The fourth proportional to 930,742.68, 1,396,338.39 and 323,442.75 is: 485,242.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,742.68 : 1,396,338.39 = 323,442.75 : x
  2. Step 2: Convert to fraction form
    930,742.68/1,396,338.39 = 323,442.75/x
  3. Step 3: Cross multiply
    930,742.68x = 1,396,338.39 × 323,442.75
  4. Step 4: Simplify right side
    930,742.68x = 451,635,528,792.17
  5. Step 5: Solve for x
    x = 451,635,528,792.17/930,742.68
  6. Step 6: Final answer
    x = 485,242.10

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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.