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Finding the Fourth Proportional to 612,039.40, 844,597.42 and 340,100.24

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Solution

The fourth proportional to 612,039.40, 844,597.42 and 340,100.24 is: 469,328.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,039.40 : 844,597.42 = 340,100.24 : x
  2. Step 2: Convert to fraction form
    612,039.40/844,597.42 = 340,100.24/x
  3. Step 3: Cross multiply
    612,039.40x = 844,597.42 × 340,100.24
  4. Step 4: Simplify right side
    612,039.40x = 287,247,785,245.38
  5. Step 5: Solve for x
    x = 287,247,785,245.38/612,039.40
  6. Step 6: Final answer
    x = 469,328.91

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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.