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Finding the Fourth Proportional to 608,546.40, 912,819.60 and 253,442.40

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Solution

The fourth proportional to 608,546.40, 912,819.60 and 253,442.40 is: 380,163.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,546.40 : 912,819.60 = 253,442.40 : x
  2. Step 2: Convert to fraction form
    608,546.40/912,819.60 = 253,442.40/x
  3. Step 3: Cross multiply
    608,546.40x = 912,819.60 × 253,442.40
  4. Step 4: Simplify right side
    608,546.40x = 231,347,190,191.04
  5. Step 5: Solve for x
    x = 231,347,190,191.04/608,546.40
  6. Step 6: Final answer
    x = 380,163.60

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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.