Home / 1,303,388.67-1,798,163.21-813,072.86

Finding the Fourth Proportional to 1,303,388.67, 1,798,163.21 and 813,072.86

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Solution

The fourth proportional to 1,303,388.67, 1,798,163.21 and 813,072.86 is: 1,121,720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,388.67 : 1,798,163.21 = 813,072.86 : x
  2. Step 2: Convert to fraction form
    1,303,388.67/1,798,163.21 = 813,072.86/x
  3. Step 3: Cross multiply
    1,303,388.67x = 1,798,163.21 × 813,072.86
  4. Step 4: Simplify right side
    1,303,388.67x = 1,462,037,703,901.48
  5. Step 5: Solve for x
    x = 1,462,037,703,901.48/1,303,388.67
  6. Step 6: Final answer
    x = 1,121,720.43

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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.