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Finding the Fourth Proportional to 478,296.96, 660,054.24 and 263,444.64

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Solution

The fourth proportional to 478,296.96, 660,054.24 and 263,444.64 is: 363,556.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,296.96 : 660,054.24 = 263,444.64 : x
  2. Step 2: Convert to fraction form
    478,296.96/660,054.24 = 263,444.64/x
  3. Step 3: Cross multiply
    478,296.96x = 660,054.24 × 263,444.64
  4. Step 4: Simplify right side
    478,296.96x = 173,887,751,637.27
  5. Step 5: Solve for x
    x = 173,887,751,637.27/478,296.96
  6. Step 6: Final answer
    x = 363,556.05

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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.