Home / 822,775.17-1,234,216.91-215,578.36

Finding the Fourth Proportional to 822,775.17, 1,234,216.91 and 215,578.36

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Solution

The fourth proportional to 822,775.17, 1,234,216.91 and 215,578.36 is: 323,381.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,775.17 : 1,234,216.91 = 215,578.36 : x
  2. Step 2: Convert to fraction form
    822,775.17/1,234,216.91 = 215,578.36/x
  3. Step 3: Cross multiply
    822,775.17x = 1,234,216.91 × 215,578.36
  4. Step 4: Simplify right side
    822,775.17x = 266,070,452,114.14
  5. Step 5: Solve for x
    x = 266,070,452,114.14/822,775.17
  6. Step 6: Final answer
    x = 323,381.72

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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.