Home / 347,436.30-521,154.45-328,082.70

Finding the Fourth Proportional to 347,436.30, 521,154.45 and 328,082.70

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Solution

The fourth proportional to 347,436.30, 521,154.45 and 328,082.70 is: 492,124.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,436.30 : 521,154.45 = 328,082.70 : x
  2. Step 2: Convert to fraction form
    347,436.30/521,154.45 = 328,082.70/x
  3. Step 3: Cross multiply
    347,436.30x = 521,154.45 × 328,082.70
  4. Step 4: Simplify right side
    347,436.30x = 170,981,759,073.02
  5. Step 5: Solve for x
    x = 170,981,759,073.02/347,436.30
  6. Step 6: Final answer
    x = 492,124.05

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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.