Home / 1,920,471.39-2,881,135.71-722,403.63

Finding the Fourth Proportional to 1,920,471.39, 2,881,135.71 and 722,403.63

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Solution

The fourth proportional to 1,920,471.39, 2,881,135.71 and 722,403.63 is: 1,083,766.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,471.39 : 2,881,135.71 = 722,403.63 : x
  2. Step 2: Convert to fraction form
    1,920,471.39/2,881,135.71 = 722,403.63/x
  3. Step 3: Cross multiply
    1,920,471.39x = 2,881,135.71 × 722,403.63
  4. Step 4: Simplify right side
    1,920,471.39x = 2,081,342,895,426.63
  5. Step 5: Solve for x
    x = 2,081,342,895,426.63/1,920,471.39
  6. Step 6: Final answer
    x = 1,083,766.68

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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.