Home / 664,562.38-916,823.04-492,902.70

Finding the Fourth Proportional to 664,562.38, 916,823.04 and 492,902.70

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Solution

The fourth proportional to 664,562.38, 916,823.04 and 492,902.70 is: 680,003.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,562.38 : 916,823.04 = 492,902.70 : x
  2. Step 2: Convert to fraction form
    664,562.38/916,823.04 = 492,902.70/x
  3. Step 3: Cross multiply
    664,562.38x = 916,823.04 × 492,902.70
  4. Step 4: Simplify right side
    664,562.38x = 451,904,551,838.21
  5. Step 5: Solve for x
    x = 451,904,551,838.21/664,562.38
  6. Step 6: Final answer
    x = 680,003.21

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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.