Home / 1,339,808.10-2,009,712.15-1,213,836.90

Finding the Fourth Proportional to 1,339,808.10, 2,009,712.15 and 1,213,836.90

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Solution

The fourth proportional to 1,339,808.10, 2,009,712.15 and 1,213,836.90 is: 1,820,755.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,808.10 : 2,009,712.15 = 1,213,836.90 : x
  2. Step 2: Convert to fraction form
    1,339,808.10/2,009,712.15 = 1,213,836.90/x
  3. Step 3: Cross multiply
    1,339,808.10x = 2,009,712.15 × 1,213,836.90
  4. Step 4: Simplify right side
    1,339,808.10x = 2,439,462,766,048.33
  5. Step 5: Solve for x
    x = 2,439,462,766,048.33/1,339,808.10
  6. Step 6: Final answer
    x = 1,820,755.35

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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.