Home / 2,128,053.40-3,192,080.10-1,008,309.40

Finding the Fourth Proportional to 2,128,053.40, 3,192,080.10 and 1,008,309.40

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Solution

The fourth proportional to 2,128,053.40, 3,192,080.10 and 1,008,309.40 is: 1,512,464.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,053.40 : 3,192,080.10 = 1,008,309.40 : x
  2. Step 2: Convert to fraction form
    2,128,053.40/3,192,080.10 = 1,008,309.40/x
  3. Step 3: Cross multiply
    2,128,053.40x = 3,192,080.10 × 1,008,309.40
  4. Step 4: Simplify right side
    2,128,053.40x = 3,218,604,370,382.94
  5. Step 5: Solve for x
    x = 3,218,604,370,382.94/2,128,053.40
  6. Step 6: Final answer
    x = 1,512,464.10

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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.