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Finding the Fourth Proportional to 571,610.13, 788,765.13 and 329,970.55

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Solution

The fourth proportional to 571,610.13, 788,765.13 and 329,970.55 is: 455,326.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,610.13 : 788,765.13 = 329,970.55 : x
  2. Step 2: Convert to fraction form
    571,610.13/788,765.13 = 329,970.55/x
  3. Step 3: Cross multiply
    571,610.13x = 788,765.13 × 329,970.55
  4. Step 4: Simplify right side
    571,610.13x = 260,269,263,766.92
  5. Step 5: Solve for x
    x = 260,269,263,766.92/571,610.13
  6. Step 6: Final answer
    x = 455,326.54

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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.