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Finding the Fourth Proportional to 401,480.66, 552,652.52 and 347,007.80

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Solution

The fourth proportional to 401,480.66, 552,652.52 and 347,007.80 is: 477,668.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,480.66 : 552,652.52 = 347,007.80 : x
  2. Step 2: Convert to fraction form
    401,480.66/552,652.52 = 347,007.80/x
  3. Step 3: Cross multiply
    401,480.66x = 552,652.52 × 347,007.80
  4. Step 4: Simplify right side
    401,480.66x = 191,774,735,129.66
  5. Step 5: Solve for x
    x = 191,774,735,129.66/401,480.66
  6. Step 6: Final answer
    x = 477,668.68

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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.