Home / 2,118,306.38-3,177,431.88-520,883.31

Finding the Fourth Proportional to 2,118,306.38, 3,177,431.88 and 520,883.31

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Solution

The fourth proportional to 2,118,306.38, 3,177,431.88 and 520,883.31 is: 781,318.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,306.38 : 3,177,431.88 = 520,883.31 : x
  2. Step 2: Convert to fraction form
    2,118,306.38/3,177,431.88 = 520,883.31/x
  3. Step 3: Cross multiply
    2,118,306.38x = 3,177,431.88 × 520,883.31
  4. Step 4: Simplify right side
    2,118,306.38x = 1,655,071,234,953.92
  5. Step 5: Solve for x
    x = 1,655,071,234,953.92/2,118,306.38
  6. Step 6: Final answer
    x = 781,318.16

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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.