Home / 1,345,209.58-1,855,338.87-861,819.34

Finding the Fourth Proportional to 1,345,209.58, 1,855,338.87 and 861,819.34

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Solution

The fourth proportional to 1,345,209.58, 1,855,338.87 and 861,819.34 is: 1,188,637.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,209.58 : 1,855,338.87 = 861,819.34 : x
  2. Step 2: Convert to fraction form
    1,345,209.58/1,855,338.87 = 861,819.34/x
  3. Step 3: Cross multiply
    1,345,209.58x = 1,855,338.87 × 861,819.34
  4. Step 4: Simplify right side
    1,345,209.58x = 1,598,966,920,419.75
  5. Step 5: Solve for x
    x = 1,598,966,920,419.75/1,345,209.58
  6. Step 6: Final answer
    x = 1,188,637.77

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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.