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Finding the Fourth Proportional to 1,338,983.12, 1,847,811.12 and 735,371.12

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Solution

The fourth proportional to 1,338,983.12, 1,847,811.12 and 735,371.12 is: 1,014,820.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,983.12 : 1,847,811.12 = 735,371.12 : x
  2. Step 2: Convert to fraction form
    1,338,983.12/1,847,811.12 = 735,371.12/x
  3. Step 3: Cross multiply
    1,338,983.12x = 1,847,811.12 × 735,371.12
  4. Step 4: Simplify right side
    1,338,983.12x = 1,358,826,932,862.85
  5. Step 5: Solve for x
    x = 1,358,826,932,862.85/1,338,983.12
  6. Step 6: Final answer
    x = 1,014,820.06

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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.