Home / 1,981,916.79-2,735,081.06-1,122,655.47

Finding the Fourth Proportional to 1,981,916.79, 2,735,081.06 and 1,122,655.47

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Solution

The fourth proportional to 1,981,916.79, 2,735,081.06 and 1,122,655.47 is: 1,549,284.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,916.79 : 2,735,081.06 = 1,122,655.47 : x
  2. Step 2: Convert to fraction form
    1,981,916.79/2,735,081.06 = 1,122,655.47/x
  3. Step 3: Cross multiply
    1,981,916.79x = 2,735,081.06 × 1,122,655.47
  4. Step 4: Simplify right side
    1,981,916.79x = 3,070,553,707,289.12
  5. Step 5: Solve for x
    x = 3,070,553,707,289.12/1,981,916.79
  6. Step 6: Final answer
    x = 1,549,284.88

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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.