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Finding the Fourth Proportional to 505,990.92, 759,095.72 and 190,446.90

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Solution

The fourth proportional to 505,990.92, 759,095.72 and 190,446.90 is: 285,711.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,990.92 : 759,095.72 = 190,446.90 : x
  2. Step 2: Convert to fraction form
    505,990.92/759,095.72 = 190,446.90/x
  3. Step 3: Cross multiply
    505,990.92x = 759,095.72 × 190,446.90
  4. Step 4: Simplify right side
    505,990.92x = 144,567,426,677.27
  5. Step 5: Solve for x
    x = 144,567,426,677.27/505,990.92
  6. Step 6: Final answer
    x = 285,711.50

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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.