Home / 1,249,868.82-1,874,900.40-408,505.62

Finding the Fourth Proportional to 1,249,868.82, 1,874,900.40 and 408,505.62

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Solution

The fourth proportional to 1,249,868.82, 1,874,900.40 and 408,505.62 is: 612,790.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,868.82 : 1,874,900.40 = 408,505.62 : x
  2. Step 2: Convert to fraction form
    1,249,868.82/1,874,900.40 = 408,505.62/x
  3. Step 3: Cross multiply
    1,249,868.82x = 1,874,900.40 × 408,505.62
  4. Step 4: Simplify right side
    1,249,868.82x = 765,907,350,340.25
  5. Step 5: Solve for x
    x = 765,907,350,340.25/1,249,868.82
  6. Step 6: Final answer
    x = 612,790.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.