Home / 881,769.62-1,216,852.30-489,310.64

Finding the Fourth Proportional to 881,769.62, 1,216,852.30 and 489,310.64

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Solution

The fourth proportional to 881,769.62, 1,216,852.30 and 489,310.64 is: 675,254.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,769.62 : 1,216,852.30 = 489,310.64 : x
  2. Step 2: Convert to fraction form
    881,769.62/1,216,852.30 = 489,310.64/x
  3. Step 3: Cross multiply
    881,769.62x = 1,216,852.30 × 489,310.64
  4. Step 4: Simplify right side
    881,769.62x = 595,418,779,517.33
  5. Step 5: Solve for x
    x = 595,418,779,517.33/881,769.62
  6. Step 6: Final answer
    x = 675,254.36

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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.