Home / 821,340.01-1,229,428.95-522,158.41

Finding the Fourth Proportional to 821,340.01, 1,229,428.95 and 522,158.41

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Solution

The fourth proportional to 821,340.01, 1,229,428.95 and 522,158.41 is: 781,596.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,340.01 : 1,229,428.95 = 522,158.41 : x
  2. Step 2: Convert to fraction form
    821,340.01/1,229,428.95 = 522,158.41/x
  3. Step 3: Cross multiply
    821,340.01x = 1,229,428.95 × 522,158.41
  4. Step 4: Simplify right side
    821,340.01x = 641,956,665,739.97
  5. Step 5: Solve for x
    x = 641,956,665,739.97/821,340.01
  6. Step 6: Final answer
    x = 781,596.73

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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.