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Finding the Fourth Proportional to 571,610.98, 788,766.31 and 329,971.40

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Solution

The fourth proportional to 571,610.98, 788,766.31 and 329,971.40 is: 455,327.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,610.98 : 788,766.31 = 329,971.40 : x
  2. Step 2: Convert to fraction form
    571,610.98/788,766.31 = 329,971.40/x
  3. Step 3: Cross multiply
    571,610.98x = 788,766.31 × 329,971.40
  4. Step 4: Simplify right side
    571,610.98x = 260,270,322,263.15
  5. Step 5: Solve for x
    x = 260,270,322,263.15/571,610.98
  6. Step 6: Final answer
    x = 455,327.72

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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.