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Finding the Fourth Proportional to 634,044.60, 874,974.42 and 347,563.80

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Solution

The fourth proportional to 634,044.60, 874,974.42 and 347,563.80 is: 479,634.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,044.60 : 874,974.42 = 347,563.80 : x
  2. Step 2: Convert to fraction form
    634,044.60/874,974.42 = 347,563.80/x
  3. Step 3: Cross multiply
    634,044.60x = 874,974.42 × 347,563.80
  4. Step 4: Simplify right side
    634,044.60x = 304,109,434,318.00
  5. Step 5: Solve for x
    x = 304,109,434,318.00/634,044.60
  6. Step 6: Final answer
    x = 479,634.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.