Home / 2,201,206.20-3,301,809.30-781,405.80

Finding the Fourth Proportional to 2,201,206.20, 3,301,809.30 and 781,405.80

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Solution

The fourth proportional to 2,201,206.20, 3,301,809.30 and 781,405.80 is: 1,172,108.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201,206.20 : 3,301,809.30 = 781,405.80 : x
  2. Step 2: Convert to fraction form
    2,201,206.20/3,301,809.30 = 781,405.80/x
  3. Step 3: Cross multiply
    2,201,206.20x = 3,301,809.30 × 781,405.80
  4. Step 4: Simplify right side
    2,201,206.20x = 2,580,052,937,513.94
  5. Step 5: Solve for x
    x = 2,580,052,937,513.94/2,201,206.20
  6. Step 6: Final answer
    x = 1,172,108.70

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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.