Home / 805,213.50-1,111,208.67-442,652.64

Finding the Fourth Proportional to 805,213.50, 1,111,208.67 and 442,652.64

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Solution

The fourth proportional to 805,213.50, 1,111,208.67 and 442,652.64 is: 610,868.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,213.50 : 1,111,208.67 = 442,652.64 : x
  2. Step 2: Convert to fraction form
    805,213.50/1,111,208.67 = 442,652.64/x
  3. Step 3: Cross multiply
    805,213.50x = 1,111,208.67 × 442,652.64
  4. Step 4: Simplify right side
    805,213.50x = 491,879,451,366.39
  5. Step 5: Solve for x
    x = 491,879,451,366.39/805,213.50
  6. Step 6: Final answer
    x = 610,868.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.