Home / 1,521,296.48-2,099,196.78-1,211,983.55

Finding the Fourth Proportional to 1,521,296.48, 2,099,196.78 and 1,211,983.55

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Solution

The fourth proportional to 1,521,296.48, 2,099,196.78 and 1,211,983.55 is: 1,672,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,296.48 : 2,099,196.78 = 1,211,983.55 : x
  2. Step 2: Convert to fraction form
    1,521,296.48/2,099,196.78 = 1,211,983.55/x
  3. Step 3: Cross multiply
    1,521,296.48x = 2,099,196.78 × 1,211,983.55
  4. Step 4: Simplify right side
    1,521,296.48x = 2,544,191,965,572.97
  5. Step 5: Solve for x
    x = 2,544,191,965,572.97/1,521,296.48
  6. Step 6: Final answer
    x = 1,672,384.05

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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.