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Finding the Fourth Proportional to 664,210.78, 916,535.17 and 373,766.24

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Solution

The fourth proportional to 664,210.78, 916,535.17 and 373,766.24 is: 515,754.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,210.78 : 916,535.17 = 373,766.24 : x
  2. Step 2: Convert to fraction form
    664,210.78/916,535.17 = 373,766.24/x
  3. Step 3: Cross multiply
    664,210.78x = 916,535.17 × 373,766.24
  4. Step 4: Simplify right side
    664,210.78x = 342,569,904,318.66
  5. Step 5: Solve for x
    x = 342,569,904,318.66/664,210.78
  6. Step 6: Final answer
    x = 515,754.81

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.