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Finding the Fourth Proportional to 626,474.67, 864,535.73 and 339,994.95

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Solution

The fourth proportional to 626,474.67, 864,535.73 and 339,994.95 is: 469,193.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,474.67 : 864,535.73 = 339,994.95 : x
  2. Step 2: Convert to fraction form
    626,474.67/864,535.73 = 339,994.95/x
  3. Step 3: Cross multiply
    626,474.67x = 864,535.73 × 339,994.95
  4. Step 4: Simplify right side
    626,474.67x = 293,937,782,294.56
  5. Step 5: Solve for x
    x = 293,937,782,294.56/626,474.67
  6. Step 6: Final answer
    x = 469,193.40

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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.