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Finding the Fourth Proportional to 626,716.32, 864,878.95 and 340,236.46

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Solution

The fourth proportional to 626,716.32, 864,878.95 and 340,236.46 is: 469,531.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,716.32 : 864,878.95 = 340,236.46 : x
  2. Step 2: Convert to fraction form
    626,716.32/864,878.95 = 340,236.46/x
  3. Step 3: Cross multiply
    626,716.32x = 864,878.95 × 340,236.46
  4. Step 4: Simplify right side
    626,716.32x = 294,263,352,276.52
  5. Step 5: Solve for x
    x = 294,263,352,276.52/626,716.32
  6. Step 6: Final answer
    x = 469,531.98

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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.