Home / 2,811,999.50-4,218,718.54-817,455.50

Finding the Fourth Proportional to 2,811,999.50, 4,218,718.54 and 817,455.50

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Solution

The fourth proportional to 2,811,999.50, 4,218,718.54 and 817,455.50 is: 1,226,392.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811,999.50 : 4,218,718.54 = 817,455.50 : x
  2. Step 2: Convert to fraction form
    2,811,999.50/4,218,718.54 = 817,455.50/x
  3. Step 3: Cross multiply
    2,811,999.50x = 4,218,718.54 × 817,455.50
  4. Step 4: Simplify right side
    2,811,999.50x = 3,448,614,673,474.97
  5. Step 5: Solve for x
    x = 3,448,614,673,474.97/2,811,999.50
  6. Step 6: Final answer
    x = 1,226,392.35

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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.