Home / 2,155,789.08-2,974,477.45-1,225,423.81

Finding the Fourth Proportional to 2,155,789.08, 2,974,477.45 and 1,225,423.81

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Solution

The fourth proportional to 2,155,789.08, 2,974,477.45 and 1,225,423.81 is: 1,690,794.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,789.08 : 2,974,477.45 = 1,225,423.81 : x
  2. Step 2: Convert to fraction form
    2,155,789.08/2,974,477.45 = 1,225,423.81/x
  3. Step 3: Cross multiply
    2,155,789.08x = 2,974,477.45 × 1,225,423.81
  4. Step 4: Simplify right side
    2,155,789.08x = 3,644,995,489,538.09
  5. Step 5: Solve for x
    x = 3,644,995,489,538.09/2,155,789.08
  6. Step 6: Final answer
    x = 1,690,794.11

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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.