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Finding the Fourth Proportional to 772,022.68, 1,157,978.40 and 239,530

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Solution

The fourth proportional to 772,022.68, 1,157,978.40 and 239,530 is: 359,277.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,022.68 : 1,157,978.40 = 239,530 : x
  2. Step 2: Convert to fraction form
    772,022.68/1,157,978.40 = 239,530/x
  3. Step 3: Cross multiply
    772,022.68x = 1,157,978.40 × 239,530
  4. Step 4: Simplify right side
    772,022.68x = 277,370,566,152
  5. Step 5: Solve for x
    x = 277,370,566,152/772,022.68
  6. Step 6: Final answer
    x = 359,277.74

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