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Finding the Fourth Proportional to 561,708.70, 840,813.45 and 404,244.70

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Solution

The fourth proportional to 561,708.70, 840,813.45 and 404,244.70 is: 605,107.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,708.70 : 840,813.45 = 404,244.70 : x
  2. Step 2: Convert to fraction form
    561,708.70/840,813.45 = 404,244.70/x
  3. Step 3: Cross multiply
    561,708.70x = 840,813.45 × 404,244.70
  4. Step 4: Simplify right side
    561,708.70x = 339,894,380,851.22
  5. Step 5: Solve for x
    x = 339,894,380,851.22/561,708.70
  6. Step 6: Final answer
    x = 605,107.92

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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.