Home / 805,215.70-1,207,823.55-539,794.90

Finding the Fourth Proportional to 805,215.70, 1,207,823.55 and 539,794.90

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Solution

The fourth proportional to 805,215.70, 1,207,823.55 and 539,794.90 is: 809,692.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,215.70 : 1,207,823.55 = 539,794.90 : x
  2. Step 2: Convert to fraction form
    805,215.70/1,207,823.55 = 539,794.90/x
  3. Step 3: Cross multiply
    805,215.70x = 1,207,823.55 × 539,794.90
  4. Step 4: Simplify right side
    805,215.70x = 651,976,992,389.90
  5. Step 5: Solve for x
    x = 651,976,992,389.90/805,215.70
  6. Step 6: Final answer
    x = 809,692.35

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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.