Home / 1,580,339.14-2,180,873.76-855,186.78

Finding the Fourth Proportional to 1,580,339.14, 2,180,873.76 and 855,186.78

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Solution

The fourth proportional to 1,580,339.14, 2,180,873.76 and 855,186.78 is: 1,180,160.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580,339.14 : 2,180,873.76 = 855,186.78 : x
  2. Step 2: Convert to fraction form
    1,580,339.14/2,180,873.76 = 855,186.78/x
  3. Step 3: Cross multiply
    1,580,339.14x = 2,180,873.76 × 855,186.78
  4. Step 4: Simplify right side
    1,580,339.14x = 1,865,054,408,400.89
  5. Step 5: Solve for x
    x = 1,865,054,408,400.89/1,580,339.14
  6. Step 6: Final answer
    x = 1,180,160.87

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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.