Home / 3,386,785.78-5,080,539.53-990,642.97

Finding the Fourth Proportional to 3,386,785.78, 5,080,539.53 and 990,642.97

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Solution

The fourth proportional to 3,386,785.78, 5,080,539.53 and 990,642.97 is: 1,486,070.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386,785.78 : 5,080,539.53 = 990,642.97 : x
  2. Step 2: Convert to fraction form
    3,386,785.78/5,080,539.53 = 990,642.97/x
  3. Step 3: Cross multiply
    3,386,785.78x = 5,080,539.53 × 990,642.97
  4. Step 4: Simplify right side
    3,386,785.78x = 5,033,000,769,201.60
  5. Step 5: Solve for x
    x = 5,033,000,769,201.60/3,386,785.78
  6. Step 6: Final answer
    x = 1,486,070.01

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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.