Home / 2,130,107.69-3,195,610.45-690,678.90

Finding the Fourth Proportional to 2,130,107.69, 3,195,610.45 and 690,678.90

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Solution

The fourth proportional to 2,130,107.69, 3,195,610.45 and 690,678.90 is: 1,036,163.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130,107.69 : 3,195,610.45 = 690,678.90 : x
  2. Step 2: Convert to fraction form
    2,130,107.69/3,195,610.45 = 690,678.90/x
  3. Step 3: Cross multiply
    2,130,107.69x = 3,195,610.45 × 690,678.90
  4. Step 4: Simplify right side
    2,130,107.69x = 2,207,140,708,707.81
  5. Step 5: Solve for x
    x = 2,207,140,708,707.81/2,130,107.69
  6. Step 6: Final answer
    x = 1,036,163.91

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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.