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Finding the Fourth Proportional to 478,848.42, 660,808.44 and 263,987.82

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Solution

The fourth proportional to 478,848.42, 660,808.44 and 263,987.82 is: 364,301.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,848.42 : 660,808.44 = 263,987.82 : x
  2. Step 2: Convert to fraction form
    478,848.42/660,808.44 = 263,987.82/x
  3. Step 3: Cross multiply
    478,848.42x = 660,808.44 × 263,987.82
  4. Step 4: Simplify right side
    478,848.42x = 174,445,379,513.20
  5. Step 5: Solve for x
    x = 174,445,379,513.20/478,848.42
  6. Step 6: Final answer
    x = 364,301.88

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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.