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Finding the Fourth Proportional to 571,695.22, 788,919.55 and 317,070.10

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Solution

The fourth proportional to 571,695.22, 788,919.55 and 317,070.10 is: 437,545.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,695.22 : 788,919.55 = 317,070.10 : x
  2. Step 2: Convert to fraction form
    571,695.22/788,919.55 = 317,070.10/x
  3. Step 3: Cross multiply
    571,695.22x = 788,919.55 × 317,070.10
  4. Step 4: Simplify right side
    571,695.22x = 250,142,800,610.46
  5. Step 5: Solve for x
    x = 250,142,800,610.46/571,695.22
  6. Step 6: Final answer
    x = 437,545.73

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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.