Home / 2,132,622.78-3,198,934.19-712,678.86

Finding the Fourth Proportional to 2,132,622.78, 3,198,934.19 and 712,678.86

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Solution

The fourth proportional to 2,132,622.78, 3,198,934.19 and 712,678.86 is: 1,069,018.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132,622.78 : 3,198,934.19 = 712,678.86 : x
  2. Step 2: Convert to fraction form
    2,132,622.78/3,198,934.19 = 712,678.86/x
  3. Step 3: Cross multiply
    2,132,622.78x = 3,198,934.19 × 712,678.86
  4. Step 4: Simplify right side
    2,132,622.78x = 2,279,812,771,744.22
  5. Step 5: Solve for x
    x = 2,279,812,771,744.22/2,132,622.78
  6. Step 6: Final answer
    x = 1,069,018.30

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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.