Home / 3,986,446.61-5,980,622.48-1,290,774.84

Finding the Fourth Proportional to 3,986,446.61, 5,980,622.48 and 1,290,774.84

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Solution

The fourth proportional to 3,986,446.61, 5,980,622.48 and 1,290,774.84 is: 1,936,470.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,446.61 : 5,980,622.48 = 1,290,774.84 : x
  2. Step 2: Convert to fraction form
    3,986,446.61/5,980,622.48 = 1,290,774.84/x
  3. Step 3: Cross multiply
    3,986,446.61x = 5,980,622.48 × 1,290,774.84
  4. Step 4: Simplify right side
    3,986,446.61x = 7,719,637,018,268.53
  5. Step 5: Solve for x
    x = 7,719,637,018,268.53/3,986,446.61
  6. Step 6: Final answer
    x = 1,936,470.69

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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.