Home / 878,162.28-1,211,865.18-475,754.28

Finding the Fourth Proportional to 878,162.28, 1,211,865.18 and 475,754.28

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Solution

The fourth proportional to 878,162.28, 1,211,865.18 and 475,754.28 is: 656,541.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,162.28 : 1,211,865.18 = 475,754.28 : x
  2. Step 2: Convert to fraction form
    878,162.28/1,211,865.18 = 475,754.28/x
  3. Step 3: Cross multiply
    878,162.28x = 1,211,865.18 × 475,754.28
  4. Step 4: Simplify right side
    878,162.28x = 576,550,046,167.97
  5. Step 5: Solve for x
    x = 576,550,046,167.97/878,162.28
  6. Step 6: Final answer
    x = 656,541.57

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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.