Home / 436,319.64-654,406.56-120,808.44

Finding the Fourth Proportional to 436,319.64, 654,406.56 and 120,808.44

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Solution

The fourth proportional to 436,319.64, 654,406.56 and 120,808.44 is: 181,192.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,319.64 : 654,406.56 = 120,808.44 : x
  2. Step 2: Convert to fraction form
    436,319.64/654,406.56 = 120,808.44/x
  3. Step 3: Cross multiply
    436,319.64x = 654,406.56 × 120,808.44
  4. Step 4: Simplify right side
    436,319.64x = 79,057,835,639.37
  5. Step 5: Solve for x
    x = 79,057,835,639.37/436,319.64
  6. Step 6: Final answer
    x = 181,192.48

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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.