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Finding the Fourth Proportional to 550,624.84, 759,862.56 and 321,339.76

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Solution

The fourth proportional to 550,624.84, 759,862.56 and 321,339.76 is: 443,449.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,624.84 : 759,862.56 = 321,339.76 : x
  2. Step 2: Convert to fraction form
    550,624.84/759,862.56 = 321,339.76/x
  3. Step 3: Cross multiply
    550,624.84x = 759,862.56 × 321,339.76
  4. Step 4: Simplify right side
    550,624.84x = 244,174,052,663.39
  5. Step 5: Solve for x
    x = 244,174,052,663.39/550,624.84
  6. Step 6: Final answer
    x = 443,449.03

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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.