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Finding the Fourth Proportional to 669,812.07, 1,004,750.91 and 270,403

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Solution

The fourth proportional to 669,812.07, 1,004,750.91 and 270,403 is: 405,617.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,812.07 : 1,004,750.91 = 270,403 : x
  2. Step 2: Convert to fraction form
    669,812.07/1,004,750.91 = 270,403/x
  3. Step 3: Cross multiply
    669,812.07x = 1,004,750.91 × 270,403
  4. Step 4: Simplify right side
    669,812.07x = 271,687,660,316.73
  5. Step 5: Solve for x
    x = 271,687,660,316.73/669,812.07
  6. Step 6: Final answer
    x = 405,617.74

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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.