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Finding the Fourth Proportional to 668,015.52, 921,874.32 and 366,191.52

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Solution

The fourth proportional to 668,015.52, 921,874.32 and 366,191.52 is: 505,351.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,015.52 : 921,874.32 = 366,191.52 : x
  2. Step 2: Convert to fraction form
    668,015.52/921,874.32 = 366,191.52/x
  3. Step 3: Cross multiply
    668,015.52x = 921,874.32 × 366,191.52
  4. Step 4: Simplify right side
    668,015.52x = 337,582,558,489.77
  5. Step 5: Solve for x
    x = 337,582,558,489.77/668,015.52
  6. Step 6: Final answer
    x = 505,351.37

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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.