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Finding the Fourth Proportional to 571,704.60, 788,913.90 and 317,046.36

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Solution

The fourth proportional to 571,704.60, 788,913.90 and 317,046.36 is: 437,502.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,704.60 : 788,913.90 = 317,046.36 : x
  2. Step 2: Convert to fraction form
    571,704.60/788,913.90 = 317,046.36/x
  3. Step 3: Cross multiply
    571,704.60x = 788,913.90 × 317,046.36
  4. Step 4: Simplify right side
    571,704.60x = 250,122,280,348.40
  5. Step 5: Solve for x
    x = 250,122,280,348.40/571,704.60
  6. Step 6: Final answer
    x = 437,502.65

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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.