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Finding the Fourth Proportional to 571,291.25, 788,407.64 and 326,297.30

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Solution

The fourth proportional to 571,291.25, 788,407.64 and 326,297.30 is: 450,304.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,291.25 : 788,407.64 = 326,297.30 : x
  2. Step 2: Convert to fraction form
    571,291.25/788,407.64 = 326,297.30/x
  3. Step 3: Cross multiply
    571,291.25x = 788,407.64 × 326,297.30
  4. Step 4: Simplify right side
    571,291.25x = 257,255,284,231.37
  5. Step 5: Solve for x
    x = 257,255,284,231.37/571,291.25
  6. Step 6: Final answer
    x = 450,304.96

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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.