Home / 2,118,302.88-3,177,426.61-520,879.78

Finding the Fourth Proportional to 2,118,302.88, 3,177,426.61 and 520,879.78

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Solution

The fourth proportional to 2,118,302.88, 3,177,426.61 and 520,879.78 is: 781,312.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,302.88 : 3,177,426.61 = 520,879.78 : x
  2. Step 2: Convert to fraction form
    2,118,302.88/3,177,426.61 = 520,879.78/x
  3. Step 3: Cross multiply
    2,118,302.88x = 3,177,426.61 × 520,879.78
  4. Step 4: Simplify right side
    2,118,302.88x = 1,655,057,273,582.95
  5. Step 5: Solve for x
    x = 1,655,057,273,582.95/2,118,302.88
  6. Step 6: Final answer
    x = 781,312.86

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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.