Home / 667,733.12-921,467.04-365,920.64

Finding the Fourth Proportional to 667,733.12, 921,467.04 and 365,920.64

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Solution

The fourth proportional to 667,733.12, 921,467.04 and 365,920.64 is: 504,967.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,733.12 : 921,467.04 = 365,920.64 : x
  2. Step 2: Convert to fraction form
    667,733.12/921,467.04 = 365,920.64/x
  3. Step 3: Cross multiply
    667,733.12x = 921,467.04 × 365,920.64
  4. Step 4: Simplify right side
    667,733.12x = 337,183,809,015.71
  5. Step 5: Solve for x
    x = 337,183,809,015.71/667,733.12
  6. Step 6: Final answer
    x = 504,967.93

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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.