Home / 1,580,154.78-2,180,607.57-855,003.90

Finding the Fourth Proportional to 1,580,154.78, 2,180,607.57 and 855,003.90

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Solution

The fourth proportional to 1,580,154.78, 2,180,607.57 and 855,003.90 is: 1,179,902.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580,154.78 : 2,180,607.57 = 855,003.90 : x
  2. Step 2: Convert to fraction form
    1,580,154.78/2,180,607.57 = 855,003.90/x
  3. Step 3: Cross multiply
    1,580,154.78x = 2,180,607.57 × 855,003.90
  4. Step 4: Simplify right side
    1,580,154.78x = 1,864,427,976,719.52
  5. Step 5: Solve for x
    x = 1,864,427,976,719.52/1,580,154.78
  6. Step 6: Final answer
    x = 1,179,902.12

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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.