Home / 1,455,729.32-2,008,879.32-811,135.76

Finding the Fourth Proportional to 1,455,729.32, 2,008,879.32 and 811,135.76

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Solution

The fourth proportional to 1,455,729.32, 2,008,879.32 and 811,135.76 is: 1,119,352.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,729.32 : 2,008,879.32 = 811,135.76 : x
  2. Step 2: Convert to fraction form
    1,455,729.32/2,008,879.32 = 811,135.76/x
  3. Step 3: Cross multiply
    1,455,729.32x = 2,008,879.32 × 811,135.76
  4. Step 4: Simplify right side
    1,455,729.32x = 1,629,473,853,976.48
  5. Step 5: Solve for x
    x = 1,629,473,853,976.48/1,455,729.32
  6. Step 6: Final answer
    x = 1,119,352.23

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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.