Home / 778,232.82-1,167,703.92-399,419.57

Finding the Fourth Proportional to 778,232.82, 1,167,703.92 and 399,419.57

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Solution

The fourth proportional to 778,232.82, 1,167,703.92 and 399,419.57 is: 599,311.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,232.82 : 1,167,703.92 = 399,419.57 : x
  2. Step 2: Convert to fraction form
    778,232.82/1,167,703.92 = 399,419.57/x
  3. Step 3: Cross multiply
    778,232.82x = 1,167,703.92 × 399,419.57
  4. Step 4: Simplify right side
    778,232.82x = 466,403,796,154.09
  5. Step 5: Solve for x
    x = 466,403,796,154.09/778,232.82
  6. Step 6: Final answer
    x = 599,311.39

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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.