Home / 641,789.96-885,666.96-347,438.84

Finding the Fourth Proportional to 641,789.96, 885,666.96 and 347,438.84

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Solution

The fourth proportional to 641,789.96, 885,666.96 and 347,438.84 is: 479,463.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,789.96 : 885,666.96 = 347,438.84 : x
  2. Step 2: Convert to fraction form
    641,789.96/885,666.96 = 347,438.84/x
  3. Step 3: Cross multiply
    641,789.96x = 885,666.96 × 347,438.84
  4. Step 4: Simplify right side
    641,789.96x = 307,715,101,208.73
  5. Step 5: Solve for x
    x = 307,715,101,208.73/641,789.96
  6. Step 6: Final answer
    x = 479,463.88

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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.