Home / 1,100,334.38-1,518,465.54-641,765.58

Finding the Fourth Proportional to 1,100,334.38, 1,518,465.54 and 641,765.58

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Solution

The fourth proportional to 1,100,334.38, 1,518,465.54 and 641,765.58 is: 885,638.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,334.38 : 1,518,465.54 = 641,765.58 : x
  2. Step 2: Convert to fraction form
    1,100,334.38/1,518,465.54 = 641,765.58/x
  3. Step 3: Cross multiply
    1,100,334.38x = 1,518,465.54 × 641,765.58
  4. Step 4: Simplify right side
    1,100,334.38x = 974,498,919,631.93
  5. Step 5: Solve for x
    x = 974,498,919,631.93/1,100,334.38
  6. Step 6: Final answer
    x = 885,638.89

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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.