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Finding the Fourth Proportional to 505,611, 758,637.90 and 239,561.64

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Solution

The fourth proportional to 505,611, 758,637.90 and 239,561.64 is: 359,447.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,611 : 758,637.90 = 239,561.64 : x
  2. Step 2: Convert to fraction form
    505,611/758,637.90 = 239,561.64/x
  3. Step 3: Cross multiply
    505,611x = 758,637.90 × 239,561.64
  4. Step 4: Simplify right side
    505,611x = 181,740,539,490.16
  5. Step 5: Solve for x
    x = 181,740,539,490.16/505,611
  6. Step 6: Final answer
    x = 359,447.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.