Home / 2,141,564.24-3,208,063.08-1,288,164.80

Finding the Fourth Proportional to 2,141,564.24, 3,208,063.08 and 1,288,164.80

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Solution

The fourth proportional to 2,141,564.24, 3,208,063.08 and 1,288,164.80 is: 1,929,670.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141,564.24 : 3,208,063.08 = 1,288,164.80 : x
  2. Step 2: Convert to fraction form
    2,141,564.24/3,208,063.08 = 1,288,164.80/x
  3. Step 3: Cross multiply
    2,141,564.24x = 3,208,063.08 × 1,288,164.80
  4. Step 4: Simplify right side
    2,141,564.24x = 4,132,513,935,835.58
  5. Step 5: Solve for x
    x = 4,132,513,935,835.58/2,141,564.24
  6. Step 6: Final answer
    x = 1,929,670.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.