Home / 2,138,565.75-3,207,820.95-519,347.85

Finding the Fourth Proportional to 2,138,565.75, 3,207,820.95 and 519,347.85

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Solution

The fourth proportional to 2,138,565.75, 3,207,820.95 and 519,347.85 is: 779,015.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,565.75 : 3,207,820.95 = 519,347.85 : x
  2. Step 2: Convert to fraction form
    2,138,565.75/3,207,820.95 = 519,347.85/x
  3. Step 3: Cross multiply
    2,138,565.75x = 3,207,820.95 × 519,347.85
  4. Step 4: Simplify right side
    2,138,565.75x = 1,665,974,913,567.46
  5. Step 5: Solve for x
    x = 1,665,974,913,567.46/2,138,565.75
  6. Step 6: Final answer
    x = 779,015.05

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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.