Home / 1,288,945.60-1,930,473.42-615,498.64

Finding the Fourth Proportional to 1,288,945.60, 1,930,473.42 and 615,498.64

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Solution

The fourth proportional to 1,288,945.60, 1,930,473.42 and 615,498.64 is: 921,841.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,945.60 : 1,930,473.42 = 615,498.64 : x
  2. Step 2: Convert to fraction form
    1,288,945.60/1,930,473.42 = 615,498.64/x
  3. Step 3: Cross multiply
    1,288,945.60x = 1,930,473.42 × 615,498.64
  4. Step 4: Simplify right side
    1,288,945.60x = 1,188,203,764,566.15
  5. Step 5: Solve for x
    x = 1,188,203,764,566.15/1,288,945.60
  6. Step 6: Final answer
    x = 921,841.67

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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.