Home / 1,019,467.71-1,405,458.09-813,435.93

Finding the Fourth Proportional to 1,019,467.71, 1,405,458.09 and 813,435.93

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Solution

The fourth proportional to 1,019,467.71, 1,405,458.09 and 813,435.93 is: 1,121,418.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,467.71 : 1,405,458.09 = 813,435.93 : x
  2. Step 2: Convert to fraction form
    1,019,467.71/1,405,458.09 = 813,435.93/x
  3. Step 3: Cross multiply
    1,019,467.71x = 1,405,458.09 × 813,435.93
  4. Step 4: Simplify right side
    1,019,467.71x = 1,143,250,108,515.17
  5. Step 5: Solve for x
    x = 1,143,250,108,515.17/1,019,467.71
  6. Step 6: Final answer
    x = 1,121,418.66

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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.