Home / 817,454.34-1,226,388.87-256,493.70

Finding the Fourth Proportional to 817,454.34, 1,226,388.87 and 256,493.70

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Solution

The fourth proportional to 817,454.34, 1,226,388.87 and 256,493.70 is: 384,805.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,454.34 : 1,226,388.87 = 256,493.70 : x
  2. Step 2: Convert to fraction form
    817,454.34/1,226,388.87 = 256,493.70/x
  3. Step 3: Cross multiply
    817,454.34x = 1,226,388.87 × 256,493.70
  4. Step 4: Simplify right side
    817,454.34x = 314,561,018,905.12
  5. Step 5: Solve for x
    x = 314,561,018,905.12/817,454.34
  6. Step 6: Final answer
    x = 384,805.61

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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.