Home / 1,992,864.78-2,989,771.70-645,027.62

Finding the Fourth Proportional to 1,992,864.78, 2,989,771.70 and 645,027.62

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Solution

The fourth proportional to 1,992,864.78, 2,989,771.70 and 645,027.62 is: 967,695.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,864.78 : 2,989,771.70 = 645,027.62 : x
  2. Step 2: Convert to fraction form
    1,992,864.78/2,989,771.70 = 645,027.62/x
  3. Step 3: Cross multiply
    1,992,864.78x = 2,989,771.70 × 645,027.62
  4. Step 4: Simplify right side
    1,992,864.78x = 1,928,485,310,658.06
  5. Step 5: Solve for x
    x = 1,928,485,310,658.06/1,992,864.78
  6. Step 6: Final answer
    x = 967,695.01

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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.