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Finding the Fourth Proportional to 575,778.70, 794,575.66 and 321,146.29

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Solution

The fourth proportional to 575,778.70, 794,575.66 and 321,146.29 is: 443,182.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,778.70 : 794,575.66 = 321,146.29 : x
  2. Step 2: Convert to fraction form
    575,778.70/794,575.66 = 321,146.29/x
  3. Step 3: Cross multiply
    575,778.70x = 794,575.66 × 321,146.29
  4. Step 4: Simplify right side
    575,778.70x = 255,175,021,360.42
  5. Step 5: Solve for x
    x = 255,175,021,360.42/575,778.70
  6. Step 6: Final answer
    x = 443,182.47

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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.