Home / 1,992,887.02-2,989,805.10-645,049.90

Finding the Fourth Proportional to 1,992,887.02, 2,989,805.10 and 645,049.90

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Solution

The fourth proportional to 1,992,887.02, 2,989,805.10 and 645,049.90 is: 967,728.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,887.02 : 2,989,805.10 = 645,049.90 : x
  2. Step 2: Convert to fraction form
    1,992,887.02/2,989,805.10 = 645,049.90/x
  3. Step 3: Cross multiply
    1,992,887.02x = 2,989,805.10 × 645,049.90
  4. Step 4: Simplify right side
    1,992,887.02x = 1,928,573,480,774.49
  5. Step 5: Solve for x
    x = 1,928,573,480,774.49/1,992,887.02
  6. Step 6: Final answer
    x = 967,728.46

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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.