Home / 980,911.76-1,470,573.60-306,645.92

Finding the Fourth Proportional to 980,911.76, 1,470,573.60 and 306,645.92

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Solution

The fourth proportional to 980,911.76, 1,470,573.60 and 306,645.92 is: 459,720.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,911.76 : 1,470,573.60 = 306,645.92 : x
  2. Step 2: Convert to fraction form
    980,911.76/1,470,573.60 = 306,645.92/x
  3. Step 3: Cross multiply
    980,911.76x = 1,470,573.60 × 306,645.92
  4. Step 4: Simplify right side
    980,911.76x = 450,945,394,499.71
  5. Step 5: Solve for x
    x = 450,945,394,499.71/980,911.76
  6. Step 6: Final answer
    x = 459,720.65

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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.