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Finding the Fourth Proportional to 505,740.90, 758,984.62 and 239,500.92

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Solution

The fourth proportional to 505,740.90, 758,984.62 and 239,500.92 is: 359,428.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,740.90 : 758,984.62 = 239,500.92 : x
  2. Step 2: Convert to fraction form
    505,740.90/758,984.62 = 239,500.92/x
  3. Step 3: Cross multiply
    505,740.90x = 758,984.62 × 239,500.92
  4. Step 4: Simplify right side
    505,740.90x = 181,777,514,755.85
  5. Step 5: Solve for x
    x = 181,777,514,755.85/505,740.90
  6. Step 6: Final answer
    x = 359,428.15

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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.