Home / 918,719.07-1,378,358.34-469,755.30

Finding the Fourth Proportional to 918,719.07, 1,378,358.34 and 469,755.30

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Solution

The fourth proportional to 918,719.07, 1,378,358.34 and 469,755.30 is: 704,775.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,719.07 : 1,378,358.34 = 469,755.30 : x
  2. Step 2: Convert to fraction form
    918,719.07/1,378,358.34 = 469,755.30/x
  3. Step 3: Cross multiply
    918,719.07x = 1,378,358.34 × 469,755.30
  4. Step 4: Simplify right side
    918,719.07x = 647,491,135,514.20
  5. Step 5: Solve for x
    x = 647,491,135,514.20/918,719.07
  6. Step 6: Final answer
    x = 704,775.98

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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.