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Finding the Fourth Proportional to 571,379.82, 788,510.56 and 326,397.01

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Solution

The fourth proportional to 571,379.82, 788,510.56 and 326,397.01 is: 450,431.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,379.82 : 788,510.56 = 326,397.01 : x
  2. Step 2: Convert to fraction form
    571,379.82/788,510.56 = 326,397.01/x
  3. Step 3: Cross multiply
    571,379.82x = 788,510.56 × 326,397.01
  4. Step 4: Simplify right side
    571,379.82x = 257,367,489,137.43
  5. Step 5: Solve for x
    x = 257,367,489,137.43/571,379.82
  6. Step 6: Final answer
    x = 450,431.53

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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.