Home / 1,992,884.42-2,989,801.29-645,047.25

Finding the Fourth Proportional to 1,992,884.42, 2,989,801.29 and 645,047.25

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Solution

The fourth proportional to 1,992,884.42, 2,989,801.29 and 645,047.25 is: 967,724.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,884.42 : 2,989,801.29 = 645,047.25 : x
  2. Step 2: Convert to fraction form
    1,992,884.42/2,989,801.29 = 645,047.25/x
  3. Step 3: Cross multiply
    1,992,884.42x = 2,989,801.29 × 645,047.25
  4. Step 4: Simplify right side
    1,992,884.42x = 1,928,563,100,160.95
  5. Step 5: Solve for x
    x = 1,928,563,100,160.95/1,992,884.42
  6. Step 6: Final answer
    x = 967,724.51

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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.