Home / 809,217.28-1,117,097.76-469,619.92

Finding the Fourth Proportional to 809,217.28, 1,117,097.76 and 469,619.92

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Solution

The fourth proportional to 809,217.28, 1,117,097.76 and 469,619.92 is: 648,294.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,217.28 : 1,117,097.76 = 469,619.92 : x
  2. Step 2: Convert to fraction form
    809,217.28/1,117,097.76 = 469,619.92/x
  3. Step 3: Cross multiply
    809,217.28x = 1,117,097.76 × 469,619.92
  4. Step 4: Simplify right side
    809,217.28x = 524,611,360,683.38
  5. Step 5: Solve for x
    x = 524,611,360,683.38/809,217.28
  6. Step 6: Final answer
    x = 648,294.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.