Home / 436,433.32-654,649.92-120,890.24

Finding the Fourth Proportional to 436,433.32, 654,649.92 and 120,890.24

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Solution

The fourth proportional to 436,433.32, 654,649.92 and 120,890.24 is: 181,335.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,433.32 : 654,649.92 = 120,890.24 : x
  2. Step 2: Convert to fraction form
    436,433.32/654,649.92 = 120,890.24/x
  3. Step 3: Cross multiply
    436,433.32x = 654,649.92 × 120,890.24
  4. Step 4: Simplify right side
    436,433.32x = 79,140,785,944.78
  5. Step 5: Solve for x
    x = 79,140,785,944.78/436,433.32
  6. Step 6: Final answer
    x = 181,335.34

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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.