Home / 389,235.05-536,667.18-320,082.92

Finding the Fourth Proportional to 389,235.05, 536,667.18 and 320,082.92

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Solution

The fourth proportional to 389,235.05, 536,667.18 and 320,082.92 is: 441,322.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,235.05 : 536,667.18 = 320,082.92 : x
  2. Step 2: Convert to fraction form
    389,235.05/536,667.18 = 320,082.92/x
  3. Step 3: Cross multiply
    389,235.05x = 536,667.18 × 320,082.92
  4. Step 4: Simplify right side
    389,235.05x = 171,777,998,042.57
  5. Step 5: Solve for x
    x = 171,777,998,042.57/389,235.05
  6. Step 6: Final answer
    x = 441,322.02

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1.5x scale

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.