Home / 2,138,567.76-3,207,823.94-519,349.86

Finding the Fourth Proportional to 2,138,567.76, 3,207,823.94 and 519,349.86

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Solution

The fourth proportional to 2,138,567.76, 3,207,823.94 and 519,349.86 is: 779,018.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,567.76 : 3,207,823.94 = 519,349.86 : x
  2. Step 2: Convert to fraction form
    2,138,567.76/3,207,823.94 = 519,349.86/x
  3. Step 3: Cross multiply
    2,138,567.76x = 3,207,823.94 × 519,349.86
  4. Step 4: Simplify right side
    2,138,567.76x = 1,665,982,914,143.65
  5. Step 5: Solve for x
    x = 1,665,982,914,143.65/2,138,567.76
  6. Step 6: Final answer
    x = 779,018.06

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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.