Home / 2,139,242.11-3,208,018.01-679,763.66

Finding the Fourth Proportional to 2,139,242.11, 3,208,018.01 and 679,763.66

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Solution

The fourth proportional to 2,139,242.11, 3,208,018.01 and 679,763.66 is: 1,019,376.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,242.11 : 3,208,018.01 = 679,763.66 : x
  2. Step 2: Convert to fraction form
    2,139,242.11/3,208,018.01 = 679,763.66/x
  3. Step 3: Cross multiply
    2,139,242.11x = 3,208,018.01 × 679,763.66
  4. Step 4: Simplify right side
    2,139,242.11x = 2,180,694,063,823.52
  5. Step 5: Solve for x
    x = 2,180,694,063,823.52/2,139,242.11
  6. Step 6: Final answer
    x = 1,019,376.93

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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.