Home / 1,781,163.78-2,665,438.80-1,107,562.32

Finding the Fourth Proportional to 1,781,163.78, 2,665,438.80 and 1,107,562.32

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Solution

The fourth proportional to 1,781,163.78, 2,665,438.80 and 1,107,562.32 is: 1,657,421.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,163.78 : 2,665,438.80 = 1,107,562.32 : x
  2. Step 2: Convert to fraction form
    1,781,163.78/2,665,438.80 = 1,107,562.32/x
  3. Step 3: Cross multiply
    1,781,163.78x = 2,665,438.80 × 1,107,562.32
  4. Step 4: Simplify right side
    1,781,163.78x = 2,952,139,581,146.02
  5. Step 5: Solve for x
    x = 2,952,139,581,146.02/1,781,163.78
  6. Step 6: Final answer
    x = 1,657,421.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.