Home / 817,330.32-1,226,754.72-418,257.36

Finding the Fourth Proportional to 817,330.32, 1,226,754.72 and 418,257.36

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Solution

The fourth proportional to 817,330.32, 1,226,754.72 and 418,257.36 is: 627,774.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,330.32 : 1,226,754.72 = 418,257.36 : x
  2. Step 2: Convert to fraction form
    817,330.32/1,226,754.72 = 418,257.36/x
  3. Step 3: Cross multiply
    817,330.32x = 1,226,754.72 × 418,257.36
  4. Step 4: Simplify right side
    817,330.32x = 513,099,190,554.74
  5. Step 5: Solve for x
    x = 513,099,190,554.74/817,330.32
  6. Step 6: Final answer
    x = 627,774.57

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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.