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Finding the Fourth Proportional to 571,289.25, 788,404.88 and 326,295.30

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Solution

The fourth proportional to 571,289.25, 788,404.88 and 326,295.30 is: 450,302.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,289.25 : 788,404.88 = 326,295.30 : x
  2. Step 2: Convert to fraction form
    571,289.25/788,404.88 = 326,295.30/x
  3. Step 3: Cross multiply
    571,289.25x = 788,404.88 × 326,295.30
  4. Step 4: Simplify right side
    571,289.25x = 257,252,807,656.80
  5. Step 5: Solve for x
    x = 257,252,807,656.80/571,289.25
  6. Step 6: Final answer
    x = 450,302.20

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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.