Home / 520,961.24-781,433.66-165,972.87

Finding the Fourth Proportional to 520,961.24, 781,433.66 and 165,972.87

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Solution

The fourth proportional to 520,961.24, 781,433.66 and 165,972.87 is: 248,956.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,961.24 : 781,433.66 = 165,972.87 : x
  2. Step 2: Convert to fraction form
    520,961.24/781,433.66 = 165,972.87/x
  3. Step 3: Cross multiply
    520,961.24x = 781,433.66 × 165,972.87
  4. Step 4: Simplify right side
    520,961.24x = 129,696,787,679.74
  5. Step 5: Solve for x
    x = 129,696,787,679.74/520,961.24
  6. Step 6: Final answer
    x = 248,956.69

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1.5x scale

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.