Home / 817,489.20-1,226,233.80-618,423.60

Finding the Fourth Proportional to 817,489.20, 1,226,233.80 and 618,423.60

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Solution

The fourth proportional to 817,489.20, 1,226,233.80 and 618,423.60 is: 927,635.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,489.20 : 1,226,233.80 = 618,423.60 : x
  2. Step 2: Convert to fraction form
    817,489.20/1,226,233.80 = 618,423.60/x
  3. Step 3: Cross multiply
    817,489.20x = 1,226,233.80 × 618,423.60
  4. Step 4: Simplify right side
    817,489.20x = 758,331,921,037.68
  5. Step 5: Solve for x
    x = 758,331,921,037.68/817,489.20
  6. Step 6: Final answer
    x = 927,635.40

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1.5x scale

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.