Home / 805,159.70-1,111,107.93-442,575.80

Finding the Fourth Proportional to 805,159.70, 1,111,107.93 and 442,575.80

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Solution

The fourth proportional to 805,159.70, 1,111,107.93 and 442,575.80 is: 610,747.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,159.70 : 1,111,107.93 = 442,575.80 : x
  2. Step 2: Convert to fraction form
    805,159.70/1,111,107.93 = 442,575.80/x
  3. Step 3: Cross multiply
    805,159.70x = 1,111,107.93 × 442,575.80
  4. Step 4: Simplify right side
    805,159.70x = 491,749,481,006.09
  5. Step 5: Solve for x
    x = 491,749,481,006.09/805,159.70
  6. Step 6: Final answer
    x = 610,747.76

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1.5x scale

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.