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Finding the Fourth Proportional to 644,805.92, 967,956.16 and 345,870.32

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Solution

The fourth proportional to 644,805.92, 967,956.16 and 345,870.32 is: 519,206.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,805.92 : 967,956.16 = 345,870.32 : x
  2. Step 2: Convert to fraction form
    644,805.92/967,956.16 = 345,870.32/x
  3. Step 3: Cross multiply
    644,805.92x = 967,956.16 × 345,870.32
  4. Step 4: Simplify right side
    644,805.92x = 334,787,306,805.17
  5. Step 5: Solve for x
    x = 334,787,306,805.17/644,805.92
  6. Step 6: Final answer
    x = 519,206.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.