Home / 805,223.50-1,111,222.47-442,662.64

Finding the Fourth Proportional to 805,223.50, 1,111,222.47 and 442,662.64

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Solution

The fourth proportional to 805,223.50, 1,111,222.47 and 442,662.64 is: 610,882.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,223.50 : 1,111,222.47 = 442,662.64 : x
  2. Step 2: Convert to fraction form
    805,223.50/1,111,222.47 = 442,662.64/x
  3. Step 3: Cross multiply
    805,223.50x = 1,111,222.47 × 442,662.64
  4. Step 4: Simplify right side
    805,223.50x = 491,896,672,197.52
  5. Step 5: Solve for x
    x = 491,896,672,197.52/805,223.50
  6. Step 6: Final answer
    x = 610,882.16

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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.