Home / 1,409,281.88-2,113,921.78-809,860.72

Finding the Fourth Proportional to 1,409,281.88, 2,113,921.78 and 809,860.72

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Solution

The fourth proportional to 1,409,281.88, 2,113,921.78 and 809,860.72 is: 1,214,790.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,281.88 : 2,113,921.78 = 809,860.72 : x
  2. Step 2: Convert to fraction form
    1,409,281.88/2,113,921.78 = 809,860.72/x
  3. Step 3: Cross multiply
    1,409,281.88x = 2,113,921.78 × 809,860.72
  4. Step 4: Simplify right side
    1,409,281.88x = 1,711,982,207,465.03
  5. Step 5: Solve for x
    x = 1,711,982,207,465.03/1,409,281.88
  6. Step 6: Final answer
    x = 1,214,790.48

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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.