Home / 409,895.17-565,656.34-228,618.85

Finding the Fourth Proportional to 409,895.17, 565,656.34 and 228,618.85

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Solution

The fourth proportional to 409,895.17, 565,656.34 and 228,618.85 is: 315,494.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,895.17 : 565,656.34 = 228,618.85 : x
  2. Step 2: Convert to fraction form
    409,895.17/565,656.34 = 228,618.85/x
  3. Step 3: Cross multiply
    409,895.17x = 565,656.34 × 228,618.85
  4. Step 4: Simplify right side
    409,895.17x = 129,319,699,117.73
  5. Step 5: Solve for x
    x = 129,319,699,117.73/409,895.17
  6. Step 6: Final answer
    x = 315,494.57

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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.