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Finding the Fourth Proportional to 419,695.34, 579,178.67 and 228,708.27

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Solution

The fourth proportional to 419,695.34, 579,178.67 and 228,708.27 is: 315,616.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,695.34 : 579,178.67 = 228,708.27 : x
  2. Step 2: Convert to fraction form
    419,695.34/579,178.67 = 228,708.27/x
  3. Step 3: Cross multiply
    419,695.34x = 579,178.67 × 228,708.27
  4. Step 4: Simplify right side
    419,695.34x = 132,462,950,493.06
  5. Step 5: Solve for x
    x = 132,462,950,493.06/419,695.34
  6. Step 6: Final answer
    x = 315,616.92

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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.