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Finding the Fourth Proportional to 626,718.88, 864,881.04 and 340,239.52

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Solution

The fourth proportional to 626,718.88, 864,881.04 and 340,239.52 is: 469,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,718.88 : 864,881.04 = 340,239.52 : x
  2. Step 2: Convert to fraction form
    626,718.88/864,881.04 = 340,239.52/x
  3. Step 3: Cross multiply
    626,718.88x = 864,881.04 × 340,239.52
  4. Step 4: Simplify right side
    626,718.88x = 294,266,709,906.70
  5. Step 5: Solve for x
    x = 294,266,709,906.70/626,718.88
  6. Step 6: Final answer
    x = 469,535.42

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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.