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Finding the Fourth Proportional to 922,609.20, 1,384,108.20 and 291,586.80

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Solution

The fourth proportional to 922,609.20, 1,384,108.20 and 291,586.80 is: 437,441.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,609.20 : 1,384,108.20 = 291,586.80 : x
  2. Step 2: Convert to fraction form
    922,609.20/1,384,108.20 = 291,586.80/x
  3. Step 3: Cross multiply
    922,609.20x = 1,384,108.20 × 291,586.80
  4. Step 4: Simplify right side
    922,609.20x = 403,587,680,891.76
  5. Step 5: Solve for x
    x = 403,587,680,891.76/922,609.20
  6. Step 6: Final answer
    x = 437,441.64

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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.