Home / 1,315,188.13-1,814,959.62-711,576.13

Finding the Fourth Proportional to 1,315,188.13, 1,814,959.62 and 711,576.13

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Solution

The fourth proportional to 1,315,188.13, 1,814,959.62 and 711,576.13 is: 981,975.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,188.13 : 1,814,959.62 = 711,576.13 : x
  2. Step 2: Convert to fraction form
    1,315,188.13/1,814,959.62 = 711,576.13/x
  3. Step 3: Cross multiply
    1,315,188.13x = 1,814,959.62 × 711,576.13
  4. Step 4: Simplify right side
    1,315,188.13x = 1,291,481,929,873.19
  5. Step 5: Solve for x
    x = 1,291,481,929,873.19/1,315,188.13
  6. Step 6: Final answer
    x = 981,975.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.