Home / 1,188,020.35-1,781,941-378,372.11

Finding the Fourth Proportional to 1,188,020.35, 1,781,941 and 378,372.11

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Solution

The fourth proportional to 1,188,020.35, 1,781,941 and 378,372.11 is: 567,529.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,020.35 : 1,781,941 = 378,372.11 : x
  2. Step 2: Convert to fraction form
    1,188,020.35/1,781,941 = 378,372.11/x
  3. Step 3: Cross multiply
    1,188,020.35x = 1,781,941 × 378,372.11
  4. Step 4: Simplify right side
    1,188,020.35x = 674,236,776,065.51
  5. Step 5: Solve for x
    x = 674,236,776,065.51/1,188,020.35
  6. Step 6: Final answer
    x = 567,529.65

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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.