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Finding the Fourth Proportional to 409,854.59, 565,598.21 and 228,566.71

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Solution

The fourth proportional to 409,854.59, 565,598.21 and 228,566.71 is: 315,421.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,854.59 : 565,598.21 = 228,566.71 : x
  2. Step 2: Convert to fraction form
    409,854.59/565,598.21 = 228,566.71/x
  3. Step 3: Cross multiply
    409,854.59x = 565,598.21 × 228,566.71
  4. Step 4: Simplify right side
    409,854.59x = 129,276,919,213.60
  5. Step 5: Solve for x
    x = 129,276,919,213.60/409,854.59
  6. Step 6: Final answer
    x = 315,421.43

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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.