Home / 1,080,637.68-1,491,237.84-621,900

Finding the Fourth Proportional to 1,080,637.68, 1,491,237.84 and 621,900

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Solution

The fourth proportional to 1,080,637.68, 1,491,237.84 and 621,900 is: 858,197.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,637.68 : 1,491,237.84 = 621,900 : x
  2. Step 2: Convert to fraction form
    1,080,637.68/1,491,237.84 = 621,900/x
  3. Step 3: Cross multiply
    1,080,637.68x = 1,491,237.84 × 621,900
  4. Step 4: Simplify right side
    1,080,637.68x = 927,400,812,696
  5. Step 5: Solve for x
    x = 927,400,812,696/1,080,637.68
  6. Step 6: Final answer
    x = 858,197.74

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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.