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Finding the Fourth Proportional to 612,057.59, 844,585.75 and 340,108.26

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Solution

The fourth proportional to 612,057.59, 844,585.75 and 340,108.26 is: 469,319.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,057.59 : 844,585.75 = 340,108.26 : x
  2. Step 2: Convert to fraction form
    612,057.59/844,585.75 = 340,108.26/x
  3. Step 3: Cross multiply
    612,057.59x = 844,585.75 × 340,108.26
  4. Step 4: Simplify right side
    612,057.59x = 287,250,589,853.30
  5. Step 5: Solve for x
    x = 287,250,589,853.30/612,057.59
  6. Step 6: Final answer
    x = 469,319.55

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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.