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Finding the Fourth Proportional to 612,042.40, 844,601.56 and 340,103.24

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Solution

The fourth proportional to 612,042.40, 844,601.56 and 340,103.24 is: 469,333.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,042.40 : 844,601.56 = 340,103.24 : x
  2. Step 2: Convert to fraction form
    612,042.40/844,601.56 = 340,103.24/x
  3. Step 3: Cross multiply
    612,042.40x = 844,601.56 × 340,103.24
  4. Step 4: Simplify right side
    612,042.40x = 287,251,727,065.05
  5. Step 5: Solve for x
    x = 287,251,727,065.05/612,042.40
  6. Step 6: Final answer
    x = 469,333.05

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1.5x scale

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.