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Finding the Fourth Proportional to 457,611.36, 631,452.72 and 266,584.80

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Solution

The fourth proportional to 457,611.36, 631,452.72 and 266,584.80 is: 367,857.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,611.36 : 631,452.72 = 266,584.80 : x
  2. Step 2: Convert to fraction form
    457,611.36/631,452.72 = 266,584.80/x
  3. Step 3: Cross multiply
    457,611.36x = 631,452.72 × 266,584.80
  4. Step 4: Simplify right side
    457,611.36x = 168,335,697,070.66
  5. Step 5: Solve for x
    x = 168,335,697,070.66/457,611.36
  6. Step 6: Final answer
    x = 367,857.34

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1.5x scale

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.