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Finding the Fourth Proportional to 555,828.66, 767,049.57 and 326,388.66

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Solution

The fourth proportional to 555,828.66, 767,049.57 and 326,388.66 is: 450,419.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,828.66 : 767,049.57 = 326,388.66 : x
  2. Step 2: Convert to fraction form
    555,828.66/767,049.57 = 326,388.66/x
  3. Step 3: Cross multiply
    555,828.66x = 767,049.57 × 326,388.66
  4. Step 4: Simplify right side
    555,828.66x = 250,356,281,305.88
  5. Step 5: Solve for x
    x = 250,356,281,305.88/555,828.66
  6. Step 6: Final answer
    x = 450,419.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.