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Finding the Fourth Proportional to 626,722.88, 864,878.45 and 340,242.95

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Solution

The fourth proportional to 626,722.88, 864,878.45 and 340,242.95 is: 469,535.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,722.88 : 864,878.45 = 340,242.95 : x
  2. Step 2: Convert to fraction form
    626,722.88/864,878.45 = 340,242.95/x
  3. Step 3: Cross multiply
    626,722.88x = 864,878.45 × 340,242.95
  4. Step 4: Simplify right side
    626,722.88x = 294,268,795,680.41
  5. Step 5: Solve for x
    x = 294,268,795,680.41/626,722.88
  6. Step 6: Final answer
    x = 469,535.75

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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.