Home / 1,580,338.14-2,180,872.38-855,185.78

Finding the Fourth Proportional to 1,580,338.14, 2,180,872.38 and 855,185.78

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Solution

The fourth proportional to 1,580,338.14, 2,180,872.38 and 855,185.78 is: 1,180,159.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580,338.14 : 2,180,872.38 = 855,185.78 : x
  2. Step 2: Convert to fraction form
    1,580,338.14/2,180,872.38 = 855,185.78/x
  3. Step 3: Cross multiply
    1,580,338.14x = 2,180,872.38 × 855,185.78
  4. Step 4: Simplify right side
    1,580,338.14x = 1,865,051,047,370.76
  5. Step 5: Solve for x
    x = 1,865,051,047,370.76/1,580,338.14
  6. Step 6: Final answer
    x = 1,180,159.49

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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.