Home / 817,962.30-1,226,943.45-219,015.90

Finding the Fourth Proportional to 817,962.30, 1,226,943.45 and 219,015.90

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Solution

The fourth proportional to 817,962.30, 1,226,943.45 and 219,015.90 is: 328,523.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,962.30 : 1,226,943.45 = 219,015.90 : x
  2. Step 2: Convert to fraction form
    817,962.30/1,226,943.45 = 219,015.90/x
  3. Step 3: Cross multiply
    817,962.30x = 1,226,943.45 × 219,015.90
  4. Step 4: Simplify right side
    817,962.30x = 268,720,123,950.86
  5. Step 5: Solve for x
    x = 268,720,123,950.86/817,962.30
  6. Step 6: Final answer
    x = 328,523.85

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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.