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Finding the Fourth Proportional to 897,406.92, 1,345,817.84 and 298,207.20

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Solution

The fourth proportional to 897,406.92, 1,345,817.84 and 298,207.20 is: 447,213.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,406.92 : 1,345,817.84 = 298,207.20 : x
  2. Step 2: Convert to fraction form
    897,406.92/1,345,817.84 = 298,207.20/x
  3. Step 3: Cross multiply
    897,406.92x = 1,345,817.84 × 298,207.20
  4. Step 4: Simplify right side
    897,406.92x = 401,332,569,776.45
  5. Step 5: Solve for x
    x = 401,332,569,776.45/897,406.92
  6. Step 6: Final answer
    x = 447,213.59

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1.5x scale

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.