Home / 985,171.32-1,477,819.28-416,446.43

Finding the Fourth Proportional to 985,171.32, 1,477,819.28 and 416,446.43

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Solution

The fourth proportional to 985,171.32, 1,477,819.28 and 416,446.43 is: 624,695.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,171.32 : 1,477,819.28 = 416,446.43 : x
  2. Step 2: Convert to fraction form
    985,171.32/1,477,819.28 = 416,446.43/x
  3. Step 3: Cross multiply
    985,171.32x = 1,477,819.28 × 416,446.43
  4. Step 4: Simplify right side
    985,171.32x = 615,432,556,993.19
  5. Step 5: Solve for x
    x = 615,432,556,993.19/985,171.32
  6. Step 6: Final answer
    x = 624,695.97

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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.