Home / 1,992,861.96-2,989,767.48-645,024.80

Finding the Fourth Proportional to 1,992,861.96, 2,989,767.48 and 645,024.80

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Solution

The fourth proportional to 1,992,861.96, 2,989,767.48 and 645,024.80 is: 967,690.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,861.96 : 2,989,767.48 = 645,024.80 : x
  2. Step 2: Convert to fraction form
    1,992,861.96/2,989,767.48 = 645,024.80/x
  3. Step 3: Cross multiply
    1,992,861.96x = 2,989,767.48 × 645,024.80
  4. Step 4: Simplify right side
    1,992,861.96x = 1,928,474,155,884.67
  5. Step 5: Solve for x
    x = 1,928,474,155,884.67/1,992,861.96
  6. Step 6: Final answer
    x = 967,690.79

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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.