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Finding the Fourth Proportional to 611,502.50, 843,845.22 and 339,587.73

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Solution

The fourth proportional to 611,502.50, 843,845.22 and 339,587.73 is: 468,615.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,502.50 : 843,845.22 = 339,587.73 : x
  2. Step 2: Convert to fraction form
    611,502.50/843,845.22 = 339,587.73/x
  3. Step 3: Cross multiply
    611,502.50x = 843,845.22 × 339,587.73
  4. Step 4: Simplify right side
    611,502.50x = 286,559,482,731.15
  5. Step 5: Solve for x
    x = 286,559,482,731.15/611,502.50
  6. Step 6: Final answer
    x = 468,615.39

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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.