Home / 805,209.50-1,111,203.16-442,648.64

Finding the Fourth Proportional to 805,209.50, 1,111,203.16 and 442,648.64

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Solution

The fourth proportional to 805,209.50, 1,111,203.16 and 442,648.64 is: 610,862.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,209.50 : 1,111,203.16 = 442,648.64 : x
  2. Step 2: Convert to fraction form
    805,209.50/1,111,203.16 = 442,648.64/x
  3. Step 3: Cross multiply
    805,209.50x = 1,111,203.16 × 442,648.64
  4. Step 4: Simplify right side
    805,209.50x = 491,872,567,537.70
  5. Step 5: Solve for x
    x = 491,872,567,537.70/805,209.50
  6. Step 6: Final answer
    x = 610,862.85

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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.