Home / 1,120,499.60-1,680,749.44-410,239.76

Finding the Fourth Proportional to 1,120,499.60, 1,680,749.44 and 410,239.76

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Solution

The fourth proportional to 1,120,499.60, 1,680,749.44 and 410,239.76 is: 615,359.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,499.60 : 1,680,749.44 = 410,239.76 : x
  2. Step 2: Convert to fraction form
    1,120,499.60/1,680,749.44 = 410,239.76/x
  3. Step 3: Cross multiply
    1,120,499.60x = 1,680,749.44 × 410,239.76
  4. Step 4: Simplify right side
    1,120,499.60x = 689,510,246,885.73
  5. Step 5: Solve for x
    x = 689,510,246,885.73/1,120,499.60
  6. Step 6: Final answer
    x = 615,359.65

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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.