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Finding the Fourth Proportional to 479,656.46, 661,931.28 and 264,796.64

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Solution

The fourth proportional to 479,656.46, 661,931.28 and 264,796.64 is: 365,422.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,656.46 : 661,931.28 = 264,796.64 : x
  2. Step 2: Convert to fraction form
    479,656.46/661,931.28 = 264,796.64/x
  3. Step 3: Cross multiply
    479,656.46x = 661,931.28 × 264,796.64
  4. Step 4: Simplify right side
    479,656.46x = 175,277,178,854.90
  5. Step 5: Solve for x
    x = 175,277,178,854.90/479,656.46
  6. Step 6: Final answer
    x = 365,422.33

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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.