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Finding the Fourth Proportional to 371,610.28, 557,648.70 and 347,699.08

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Solution

The fourth proportional to 371,610.28, 557,648.70 and 347,699.08 is: 521,766.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,610.28 : 557,648.70 = 347,699.08 : x
  2. Step 2: Convert to fraction form
    371,610.28/557,648.70 = 347,699.08/x
  3. Step 3: Cross multiply
    371,610.28x = 557,648.70 × 347,699.08
  4. Step 4: Simplify right side
    371,610.28x = 193,893,939,953.20
  5. Step 5: Solve for x
    x = 193,893,939,953.20/371,610.28
  6. Step 6: Final answer
    x = 521,766.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.