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Finding the Fourth Proportional to 691,770.60, 954,480.66 and 419,832.36

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Solution

The fourth proportional to 691,770.60, 954,480.66 and 419,832.36 is: 579,269.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,770.60 : 954,480.66 = 419,832.36 : x
  2. Step 2: Convert to fraction form
    691,770.60/954,480.66 = 419,832.36/x
  3. Step 3: Cross multiply
    691,770.60x = 954,480.66 × 419,832.36
  4. Step 4: Simplify right side
    691,770.60x = 400,721,868,062.16
  5. Step 5: Solve for x
    x = 400,721,868,062.16/691,770.60
  6. Step 6: Final answer
    x = 579,269.87

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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.