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Finding the Fourth Proportional to 626,517.42, 864,594.81 and 340,037.46

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Solution

The fourth proportional to 626,517.42, 864,594.81 and 340,037.46 is: 469,252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,517.42 : 864,594.81 = 340,037.46 : x
  2. Step 2: Convert to fraction form
    626,517.42/864,594.81 = 340,037.46/x
  3. Step 3: Cross multiply
    626,517.42x = 864,594.81 × 340,037.46
  4. Step 4: Simplify right side
    626,517.42x = 293,994,623,121.58
  5. Step 5: Solve for x
    x = 293,994,623,121.58/626,517.42
  6. Step 6: Final answer
    x = 469,252.11

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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.