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Finding the Fourth Proportional to 478,785.18, 660,693.87 and 263,914.14

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Solution

The fourth proportional to 478,785.18, 660,693.87 and 263,914.14 is: 364,185.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,785.18 : 660,693.87 = 263,914.14 : x
  2. Step 2: Convert to fraction form
    478,785.18/660,693.87 = 263,914.14/x
  3. Step 3: Cross multiply
    478,785.18x = 660,693.87 × 263,914.14
  4. Step 4: Simplify right side
    478,785.18x = 174,366,454,504.32
  5. Step 5: Solve for x
    x = 174,366,454,504.32/478,785.18
  6. Step 6: Final answer
    x = 364,185.15

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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.