Home / 816,018.92-1,223,557.50-316,799.72

Finding the Fourth Proportional to 816,018.92, 1,223,557.50 and 316,799.72

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Solution

The fourth proportional to 816,018.92, 1,223,557.50 and 316,799.72 is: 475,016.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,018.92 : 1,223,557.50 = 316,799.72 : x
  2. Step 2: Convert to fraction form
    816,018.92/1,223,557.50 = 316,799.72/x
  3. Step 3: Cross multiply
    816,018.92x = 1,223,557.50 × 316,799.72
  4. Step 4: Simplify right side
    816,018.92x = 387,622,673,403.90
  5. Step 5: Solve for x
    x = 387,622,673,403.90/816,018.92
  6. Step 6: Final answer
    x = 475,016.77

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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.