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Finding the Fourth Proportional to 647,208.80, 970,050.68 and 291,806.72

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Solution

The fourth proportional to 647,208.80, 970,050.68 and 291,806.72 is: 437,366.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,208.80 : 970,050.68 = 291,806.72 : x
  2. Step 2: Convert to fraction form
    647,208.80/970,050.68 = 291,806.72/x
  3. Step 3: Cross multiply
    647,208.80x = 970,050.68 × 291,806.72
  4. Step 4: Simplify right side
    647,208.80x = 283,067,307,164.57
  5. Step 5: Solve for x
    x = 283,067,307,164.57/647,208.80
  6. Step 6: Final answer
    x = 437,366.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.