Home / 859,578.12-1,288,922.22-385,855.56

Finding the Fourth Proportional to 859,578.12, 1,288,922.22 and 385,855.56

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Solution

The fourth proportional to 859,578.12, 1,288,922.22 and 385,855.56 is: 578,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,578.12 : 1,288,922.22 = 385,855.56 : x
  2. Step 2: Convert to fraction form
    859,578.12/1,288,922.22 = 385,855.56/x
  3. Step 3: Cross multiply
    859,578.12x = 1,288,922.22 × 385,855.56
  4. Step 4: Simplify right side
    859,578.12x = 497,337,804,994.54
  5. Step 5: Solve for x
    x = 497,337,804,994.54/859,578.12
  6. Step 6: Final answer
    x = 578,583.60

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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.