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Finding the Fourth Proportional to 434,178.31, 650,480.11 and 424,730.47

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Solution

The fourth proportional to 434,178.31, 650,480.11 and 424,730.47 is: 636,325.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,178.31 : 650,480.11 = 424,730.47 : x
  2. Step 2: Convert to fraction form
    434,178.31/650,480.11 = 424,730.47/x
  3. Step 3: Cross multiply
    434,178.31x = 650,480.11 × 424,730.47
  4. Step 4: Simplify right side
    434,178.31x = 276,278,722,845.95
  5. Step 5: Solve for x
    x = 276,278,722,845.95/434,178.31
  6. Step 6: Final answer
    x = 636,325.48

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1.5x scale

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.