Home / 2,128,207.20-3,193,232.40-1,005,698.40

Finding the Fourth Proportional to 2,128,207.20, 3,193,232.40 and 1,005,698.40

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Solution

The fourth proportional to 2,128,207.20, 3,193,232.40 and 1,005,698.40 is: 1,508,983.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,207.20 : 3,193,232.40 = 1,005,698.40 : x
  2. Step 2: Convert to fraction form
    2,128,207.20/3,193,232.40 = 1,005,698.40/x
  3. Step 3: Cross multiply
    2,128,207.20x = 3,193,232.40 × 1,005,698.40
  4. Step 4: Simplify right side
    2,128,207.20x = 3,211,428,715,508.16
  5. Step 5: Solve for x
    x = 3,211,428,715,508.16/2,128,207.20
  6. Step 6: Final answer
    x = 1,508,983.11

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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.