Home / 3,409,144.42-5,112,387.27-1,278,065.38

Finding the Fourth Proportional to 3,409,144.42, 5,112,387.27 and 1,278,065.38

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Solution

The fourth proportional to 3,409,144.42, 5,112,387.27 and 1,278,065.38 is: 1,916,599.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409,144.42 : 5,112,387.27 = 1,278,065.38 : x
  2. Step 2: Convert to fraction form
    3,409,144.42/5,112,387.27 = 1,278,065.38/x
  3. Step 3: Cross multiply
    3,409,144.42x = 5,112,387.27 × 1,278,065.38
  4. Step 4: Simplify right side
    3,409,144.42x = 6,533,965,178,939.71
  5. Step 5: Solve for x
    x = 6,533,965,178,939.71/3,409,144.42
  6. Step 6: Final answer
    x = 1,916,599.70

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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.