Home / 3,985,618.30-5,979,376.02-1,289,943.52

Finding the Fourth Proportional to 3,985,618.30, 5,979,376.02 and 1,289,943.52

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Solution

The fourth proportional to 3,985,618.30, 5,979,376.02 and 1,289,943.52 is: 1,935,222.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,618.30 : 5,979,376.02 = 1,289,943.52 : x
  2. Step 2: Convert to fraction form
    3,985,618.30/5,979,376.02 = 1,289,943.52/x
  3. Step 3: Cross multiply
    3,985,618.30x = 5,979,376.02 × 1,289,943.52
  4. Step 4: Simplify right side
    3,985,618.30x = 7,713,057,350,642.39
  5. Step 5: Solve for x
    x = 7,713,057,350,642.39/3,985,618.30
  6. Step 6: Final answer
    x = 1,935,222.28

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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.