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Finding the Fourth Proportional to 647,073.54, 970,876.98 and 268,070.58

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Solution

The fourth proportional to 647,073.54, 970,876.98 and 268,070.58 is: 402,216.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,073.54 : 970,876.98 = 268,070.58 : x
  2. Step 2: Convert to fraction form
    647,073.54/970,876.98 = 268,070.58/x
  3. Step 3: Cross multiply
    647,073.54x = 970,876.98 × 268,070.58
  4. Step 4: Simplify right side
    647,073.54x = 260,263,555,137.25
  5. Step 5: Solve for x
    x = 260,263,555,137.25/647,073.54
  6. Step 6: Final answer
    x = 402,216.35

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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.