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Finding the Fourth Proportional to 478,978.64, 660,976.37 and 264,118.64

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Solution

The fourth proportional to 478,978.64, 660,976.37 and 264,118.64 is: 364,475.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,978.64 : 660,976.37 = 264,118.64 : x
  2. Step 2: Convert to fraction form
    478,978.64/660,976.37 = 264,118.64/x
  3. Step 3: Cross multiply
    478,978.64x = 660,976.37 × 264,118.64
  4. Step 4: Simplify right side
    478,978.64x = 174,576,175,291.06
  5. Step 5: Solve for x
    x = 174,576,175,291.06/478,978.64
  6. Step 6: Final answer
    x = 364,475.91

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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.