Home / 578,320.62-798,074.20-320,172.81

Finding the Fourth Proportional to 578,320.62, 798,074.20 and 320,172.81

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Solution

The fourth proportional to 578,320.62, 798,074.20 and 320,172.81 is: 441,833.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,320.62 : 798,074.20 = 320,172.81 : x
  2. Step 2: Convert to fraction form
    578,320.62/798,074.20 = 320,172.81/x
  3. Step 3: Cross multiply
    578,320.62x = 798,074.20 × 320,172.81
  4. Step 4: Simplify right side
    578,320.62x = 255,521,659,202.50
  5. Step 5: Solve for x
    x = 255,521,659,202.50/578,320.62
  6. Step 6: Final answer
    x = 441,833.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.