Home / 1,309,523.52-1,807,161.12-772,979.52

Finding the Fourth Proportional to 1,309,523.52, 1,807,161.12 and 772,979.52

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Solution

The fourth proportional to 1,309,523.52, 1,807,161.12 and 772,979.52 is: 1,066,722.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,523.52 : 1,807,161.12 = 772,979.52 : x
  2. Step 2: Convert to fraction form
    1,309,523.52/1,807,161.12 = 772,979.52/x
  3. Step 3: Cross multiply
    1,309,523.52x = 1,807,161.12 × 772,979.52
  4. Step 4: Simplify right side
    1,309,523.52x = 1,396,898,535,100.26
  5. Step 5: Solve for x
    x = 1,396,898,535,100.26/1,309,523.52
  6. Step 6: Final answer
    x = 1,066,722.75

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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.