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Finding the Fourth Proportional to 493,354.12, 680,828.70 and 266,999.62

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Solution

The fourth proportional to 493,354.12, 680,828.70 and 266,999.62 is: 368,459.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,354.12 : 680,828.70 = 266,999.62 : x
  2. Step 2: Convert to fraction form
    493,354.12/680,828.70 = 266,999.62/x
  3. Step 3: Cross multiply
    493,354.12x = 680,828.70 × 266,999.62
  4. Step 4: Simplify right side
    493,354.12x = 181,781,004,185.09
  5. Step 5: Solve for x
    x = 181,781,004,185.09/493,354.12
  6. Step 6: Final answer
    x = 368,459.48

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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.