Home / 1,442,420.39-1,990,406.54-797,826.71

Finding the Fourth Proportional to 1,442,420.39, 1,990,406.54 and 797,826.71

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Solution

The fourth proportional to 1,442,420.39, 1,990,406.54 and 797,826.71 is: 1,100,926.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,420.39 : 1,990,406.54 = 797,826.71 : x
  2. Step 2: Convert to fraction form
    1,442,420.39/1,990,406.54 = 797,826.71/x
  3. Step 3: Cross multiply
    1,442,420.39x = 1,990,406.54 × 797,826.71
  4. Step 4: Simplify right side
    1,442,420.39x = 1,587,999,487,429.52
  5. Step 5: Solve for x
    x = 1,587,999,487,429.52/1,442,420.39
  6. Step 6: Final answer
    x = 1,100,926.96

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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.