Home / 2,190,014.65-3,021,921.39-1,223,021.62

Finding the Fourth Proportional to 2,190,014.65, 3,021,921.39 and 1,223,021.62

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Solution

The fourth proportional to 2,190,014.65, 3,021,921.39 and 1,223,021.62 is: 1,687,602.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,014.65 : 3,021,921.39 = 1,223,021.62 : x
  2. Step 2: Convert to fraction form
    2,190,014.65/3,021,921.39 = 1,223,021.62/x
  3. Step 3: Cross multiply
    2,190,014.65x = 3,021,921.39 × 1,223,021.62
  4. Step 4: Simplify right side
    2,190,014.65x = 3,695,875,193,910.45
  5. Step 5: Solve for x
    x = 3,695,875,193,910.45/2,190,014.65
  6. Step 6: Final answer
    x = 1,687,602.95

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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.