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Finding the Fourth Proportional to 626,277.98, 864,269.16 and 339,803.75

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Solution

The fourth proportional to 626,277.98, 864,269.16 and 339,803.75 is: 468,932.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,277.98 : 864,269.16 = 339,803.75 : x
  2. Step 2: Convert to fraction form
    626,277.98/864,269.16 = 339,803.75/x
  3. Step 3: Cross multiply
    626,277.98x = 864,269.16 × 339,803.75
  4. Step 4: Simplify right side
    626,277.98x = 293,681,902,463.76
  5. Step 5: Solve for x
    x = 293,681,902,463.76/626,277.98
  6. Step 6: Final answer
    x = 468,932.18

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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.