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Finding the Fourth Proportional to 612,232.76, 844,845.04 and 340,291.31

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Solution

The fourth proportional to 612,232.76, 844,845.04 and 340,291.31 is: 469,581.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,232.76 : 844,845.04 = 340,291.31 : x
  2. Step 2: Convert to fraction form
    612,232.76/844,845.04 = 340,291.31/x
  3. Step 3: Cross multiply
    612,232.76x = 844,845.04 × 340,291.31
  4. Step 4: Simplify right side
    612,232.76x = 287,493,424,447.86
  5. Step 5: Solve for x
    x = 287,493,424,447.86/612,232.76
  6. Step 6: Final answer
    x = 469,581.90

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Double scale
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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.