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Finding the Fourth Proportional to 707,890.67, 976,861.49 and 432,709.23

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Solution

The fourth proportional to 707,890.67, 976,861.49 and 432,709.23 is: 597,121.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,890.67 : 976,861.49 = 432,709.23 : x
  2. Step 2: Convert to fraction form
    707,890.67/976,861.49 = 432,709.23/x
  3. Step 3: Cross multiply
    707,890.67x = 976,861.49 × 432,709.23
  4. Step 4: Simplify right side
    707,890.67x = 422,696,981,436.66
  5. Step 5: Solve for x
    x = 422,696,981,436.66/707,890.67
  6. Step 6: Final answer
    x = 597,121.85

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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.