Home / 1,422,155.22-1,962,574.38-777,575.86

Finding the Fourth Proportional to 1,422,155.22, 1,962,574.38 and 777,575.86

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Solution

The fourth proportional to 1,422,155.22, 1,962,574.38 and 777,575.86 is: 1,073,054.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,155.22 : 1,962,574.38 = 777,575.86 : x
  2. Step 2: Convert to fraction form
    1,422,155.22/1,962,574.38 = 777,575.86/x
  3. Step 3: Cross multiply
    1,422,155.22x = 1,962,574.38 × 777,575.86
  4. Step 4: Simplify right side
    1,422,155.22x = 1,526,050,461,342.47
  5. Step 5: Solve for x
    x = 1,526,050,461,342.47/1,422,155.22
  6. Step 6: Final answer
    x = 1,073,054.78

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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.