Home / 1,386,867.60-2,080,301.40-789,670.80

Finding the Fourth Proportional to 1,386,867.60, 2,080,301.40 and 789,670.80

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Solution

The fourth proportional to 1,386,867.60, 2,080,301.40 and 789,670.80 is: 1,184,506.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,867.60 : 2,080,301.40 = 789,670.80 : x
  2. Step 2: Convert to fraction form
    1,386,867.60/2,080,301.40 = 789,670.80/x
  3. Step 3: Cross multiply
    1,386,867.60x = 2,080,301.40 × 789,670.80
  4. Step 4: Simplify right side
    1,386,867.60x = 1,642,753,270,779.12
  5. Step 5: Solve for x
    x = 1,642,753,270,779.12/1,386,867.60
  6. Step 6: Final answer
    x = 1,184,506.20

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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.