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Finding the Fourth Proportional to 571,471.09, 788,599.76 and 326,407.70

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Solution

The fourth proportional to 571,471.09, 788,599.76 and 326,407.70 is: 450,425.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,471.09 : 788,599.76 = 326,407.70 : x
  2. Step 2: Convert to fraction form
    571,471.09/788,599.76 = 326,407.70/x
  3. Step 3: Cross multiply
    571,471.09x = 788,599.76 × 326,407.70
  4. Step 4: Simplify right side
    571,471.09x = 257,405,034,221.61
  5. Step 5: Solve for x
    x = 257,405,034,221.61/571,471.09
  6. Step 6: Final answer
    x = 450,425.30

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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.