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Finding the Fourth Proportional to 691,375.09, 954,308.49 and 401,060.02

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Solution

The fourth proportional to 691,375.09, 954,308.49 and 401,060.02 is: 553,585.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,375.09 : 954,308.49 = 401,060.02 : x
  2. Step 2: Convert to fraction form
    691,375.09/954,308.49 = 401,060.02/x
  3. Step 3: Cross multiply
    691,375.09x = 954,308.49 × 401,060.02
  4. Step 4: Simplify right side
    691,375.09x = 382,734,982,085.57
  5. Step 5: Solve for x
    x = 382,734,982,085.57/691,375.09
  6. Step 6: Final answer
    x = 553,585.15

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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.