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Finding the Fourth Proportional to 448,624.56, 671,562.84 and 290,538.48

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Solution

The fourth proportional to 448,624.56, 671,562.84 and 290,538.48 is: 434,917.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,624.56 : 671,562.84 = 290,538.48 : x
  2. Step 2: Convert to fraction form
    448,624.56/671,562.84 = 290,538.48/x
  3. Step 3: Cross multiply
    448,624.56x = 671,562.84 × 290,538.48
  4. Step 4: Simplify right side
    448,624.56x = 195,114,846,758.08
  5. Step 5: Solve for x
    x = 195,114,846,758.08/448,624.56
  6. Step 6: Final answer
    x = 434,917.89

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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.