Home / 817,810.22-1,226,764.54-256,844.72

Finding the Fourth Proportional to 817,810.22, 1,226,764.54 and 256,844.72

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Solution

The fourth proportional to 817,810.22, 1,226,764.54 and 256,844.72 is: 385,282.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,810.22 : 1,226,764.54 = 256,844.72 : x
  2. Step 2: Convert to fraction form
    817,810.22/1,226,764.54 = 256,844.72/x
  3. Step 3: Cross multiply
    817,810.22x = 1,226,764.54 × 256,844.72
  4. Step 4: Simplify right side
    817,810.22x = 315,087,998,170.20
  5. Step 5: Solve for x
    x = 315,087,998,170.20/817,810.22
  6. Step 6: Final answer
    x = 385,282.54

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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.