Home / 1,278,675.69-1,918,329.27-380,113.62

Finding the Fourth Proportional to 1,278,675.69, 1,918,329.27 and 380,113.62

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Solution

The fourth proportional to 1,278,675.69, 1,918,329.27 and 380,113.62 is: 570,264.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,675.69 : 1,918,329.27 = 380,113.62 : x
  2. Step 2: Convert to fraction form
    1,278,675.69/1,918,329.27 = 380,113.62/x
  3. Step 3: Cross multiply
    1,278,675.69x = 1,918,329.27 × 380,113.62
  4. Step 4: Simplify right side
    1,278,675.69x = 729,183,083,171.66
  5. Step 5: Solve for x
    x = 729,183,083,171.66/1,278,675.69
  6. Step 6: Final answer
    x = 570,264.29

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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.