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Finding the Fourth Proportional to 377,469, 520,910.91 and 207,706.77

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Solution

The fourth proportional to 377,469, 520,910.91 and 207,706.77 is: 286,637.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,469 : 520,910.91 = 207,706.77 : x
  2. Step 2: Convert to fraction form
    377,469/520,910.91 = 207,706.77/x
  3. Step 3: Cross multiply
    377,469x = 520,910.91 × 207,706.77
  4. Step 4: Simplify right side
    377,469x = 108,196,722,573.86
  5. Step 5: Solve for x
    x = 108,196,722,573.86/377,469
  6. Step 6: Final answer
    x = 286,637.37

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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.