Home / 808,596.32-1,213,015.80-261,306.32

Finding the Fourth Proportional to 808,596.32, 1,213,015.80 and 261,306.32

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Solution

The fourth proportional to 808,596.32, 1,213,015.80 and 261,306.32 is: 391,998.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,596.32 : 1,213,015.80 = 261,306.32 : x
  2. Step 2: Convert to fraction form
    808,596.32/1,213,015.80 = 261,306.32/x
  3. Step 3: Cross multiply
    808,596.32x = 1,213,015.80 × 261,306.32
  4. Step 4: Simplify right side
    808,596.32x = 316,968,694,799.86
  5. Step 5: Solve for x
    x = 316,968,694,799.86/808,596.32
  6. Step 6: Final answer
    x = 391,998.69

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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.