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Finding the Fourth Proportional to 684,379.92, 944,450.34 and 378,476.82

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Solution

The fourth proportional to 684,379.92, 944,450.34 and 378,476.82 is: 522,301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,379.92 : 944,450.34 = 378,476.82 : x
  2. Step 2: Convert to fraction form
    684,379.92/944,450.34 = 378,476.82/x
  3. Step 3: Cross multiply
    684,379.92x = 944,450.34 × 378,476.82
  4. Step 4: Simplify right side
    684,379.92x = 357,452,561,331.12
  5. Step 5: Solve for x
    x = 357,452,561,331.12/684,379.92
  6. Step 6: Final answer
    x = 522,301.36

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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.