Home / 1,992,882.54-2,989,798.37-645,045.38

Finding the Fourth Proportional to 1,992,882.54, 2,989,798.37 and 645,045.38

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Solution

The fourth proportional to 1,992,882.54, 2,989,798.37 and 645,045.38 is: 967,721.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,882.54 : 2,989,798.37 = 645,045.38 : x
  2. Step 2: Convert to fraction form
    1,992,882.54/2,989,798.37 = 645,045.38/x
  3. Step 3: Cross multiply
    1,992,882.54x = 2,989,798.37 × 645,045.38
  4. Step 4: Simplify right side
    1,992,882.54x = 1,928,555,625,700.03
  5. Step 5: Solve for x
    x = 1,928,555,625,700.03/1,992,882.54
  6. Step 6: Final answer
    x = 967,721.67

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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.