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Finding the Fourth Proportional to 489,797.96, 734,908.34 and 253,306.71

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Solution

The fourth proportional to 489,797.96, 734,908.34 and 253,306.71 is: 380,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,797.96 : 734,908.34 = 253,306.71 : x
  2. Step 2: Convert to fraction form
    489,797.96/734,908.34 = 253,306.71/x
  3. Step 3: Cross multiply
    489,797.96x = 734,908.34 × 253,306.71
  4. Step 4: Simplify right side
    489,797.96x = 186,157,212,490.43
  5. Step 5: Solve for x
    x = 186,157,212,490.43/489,797.96
  6. Step 6: Final answer
    x = 380,069.40

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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.