Home / 379,800.96-523,917-243,682.92

Finding the Fourth Proportional to 379,800.96, 523,917 and 243,682.92

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Solution

The fourth proportional to 379,800.96, 523,917 and 243,682.92 is: 336,148.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,800.96 : 523,917 = 243,682.92 : x
  2. Step 2: Convert to fraction form
    379,800.96/523,917 = 243,682.92/x
  3. Step 3: Cross multiply
    379,800.96x = 523,917 × 243,682.92
  4. Step 4: Simplify right side
    379,800.96x = 127,669,624,397.64
  5. Step 5: Solve for x
    x = 127,669,624,397.64/379,800.96
  6. Step 6: Final answer
    x = 336,148.77

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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.