Home / 2,585,251.28-3,878,133.90-989,156.81

Finding the Fourth Proportional to 2,585,251.28, 3,878,133.90 and 989,156.81

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Solution

The fourth proportional to 2,585,251.28, 3,878,133.90 and 989,156.81 is: 1,483,833.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585,251.28 : 3,878,133.90 = 989,156.81 : x
  2. Step 2: Convert to fraction form
    2,585,251.28/3,878,133.90 = 989,156.81/x
  3. Step 3: Cross multiply
    2,585,251.28x = 3,878,133.90 × 989,156.81
  4. Step 4: Simplify right side
    2,585,251.28x = 3,836,082,563,262.86
  5. Step 5: Solve for x
    x = 3,836,082,563,262.86/2,585,251.28
  6. Step 6: Final answer
    x = 1,483,833.54

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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.