Home / 2,155,798.68-2,974,873.71-1,238,177.22

Finding the Fourth Proportional to 2,155,798.68, 2,974,873.71 and 1,238,177.22

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Solution

The fourth proportional to 2,155,798.68, 2,974,873.71 and 1,238,177.22 is: 1,708,610.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,798.68 : 2,974,873.71 = 1,238,177.22 : x
  2. Step 2: Convert to fraction form
    2,155,798.68/2,974,873.71 = 1,238,177.22/x
  3. Step 3: Cross multiply
    2,155,798.68x = 2,974,873.71 × 1,238,177.22
  4. Step 4: Simplify right side
    2,155,798.68x = 3,683,420,860,098.89
  5. Step 5: Solve for x
    x = 3,683,420,860,098.89/2,155,798.68
  6. Step 6: Final answer
    x = 1,708,610.78

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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.