Home / 1,491,039.20-2,057,666.88-811,975.84

Finding the Fourth Proportional to 1,491,039.20, 2,057,666.88 and 811,975.84

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Solution

The fourth proportional to 1,491,039.20, 2,057,666.88 and 811,975.84 is: 1,120,544.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,039.20 : 2,057,666.88 = 811,975.84 : x
  2. Step 2: Convert to fraction form
    1,491,039.20/2,057,666.88 = 811,975.84/x
  3. Step 3: Cross multiply
    1,491,039.20x = 2,057,666.88 × 811,975.84
  4. Step 4: Simplify right side
    1,491,039.20x = 1,670,775,793,328.18
  5. Step 5: Solve for x
    x = 1,670,775,793,328.18/1,491,039.20
  6. Step 6: Final answer
    x = 1,120,544.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.