Home / 1,791,985.43-2,688,371.57-1,317,231.47

Finding the Fourth Proportional to 1,791,985.43, 2,688,371.57 and 1,317,231.47

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Solution

The fourth proportional to 1,791,985.43, 2,688,371.57 and 1,317,231.47 is: 1,976,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,985.43 : 2,688,371.57 = 1,317,231.47 : x
  2. Step 2: Convert to fraction form
    1,791,985.43/2,688,371.57 = 1,317,231.47/x
  3. Step 3: Cross multiply
    1,791,985.43x = 2,688,371.57 × 1,317,231.47
  4. Step 4: Simplify right side
    1,791,985.43x = 3,541,207,629,949.23
  5. Step 5: Solve for x
    x = 3,541,207,629,949.23/1,791,985.43
  6. Step 6: Final answer
    x = 1,976,136.40

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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.