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Finding the Fourth Proportional to 633,974.47, 874,974.47 and 392,334.86

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Solution

The fourth proportional to 633,974.47, 874,974.47 and 392,334.86 is: 541,477.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,974.47 : 874,974.47 = 392,334.86 : x
  2. Step 2: Convert to fraction form
    633,974.47/874,974.47 = 392,334.86/x
  3. Step 3: Cross multiply
    633,974.47x = 874,974.47 × 392,334.86
  4. Step 4: Simplify right side
    633,974.47x = 343,282,986,191.02
  5. Step 5: Solve for x
    x = 343,282,986,191.02/633,974.47
  6. Step 6: Final answer
    x = 541,477.62

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