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Finding the Fourth Proportional to 671,715.92, 926,958.76 and 381,324.94

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Solution

The fourth proportional to 671,715.92, 926,958.76 and 381,324.94 is: 526,223.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,715.92 : 926,958.76 = 381,324.94 : x
  2. Step 2: Convert to fraction form
    671,715.92/926,958.76 = 381,324.94/x
  3. Step 3: Cross multiply
    671,715.92x = 926,958.76 × 381,324.94
  4. Step 4: Simplify right side
    671,715.92x = 353,472,490,268.77
  5. Step 5: Solve for x
    x = 353,472,490,268.77/671,715.92
  6. Step 6: Final answer
    x = 526,223.18

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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.