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Finding the Fourth Proportional to 571,294.76, 788,375.50 and 313,172.26

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Solution

The fourth proportional to 571,294.76, 788,375.50 and 313,172.26 is: 432,171.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,294.76 : 788,375.50 = 313,172.26 : x
  2. Step 2: Convert to fraction form
    571,294.76/788,375.50 = 313,172.26/x
  3. Step 3: Cross multiply
    571,294.76x = 788,375.50 × 313,172.26
  4. Step 4: Simplify right side
    571,294.76x = 246,897,334,309.76
  5. Step 5: Solve for x
    x = 246,897,334,309.76/571,294.76
  6. Step 6: Final answer
    x = 432,171.54

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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.