Home / 808,961.38-1,213,598.13-310,286.50

Finding the Fourth Proportional to 808,961.38, 1,213,598.13 and 310,286.50

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Solution

The fourth proportional to 808,961.38, 1,213,598.13 and 310,286.50 is: 465,489.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,961.38 : 1,213,598.13 = 310,286.50 : x
  2. Step 2: Convert to fraction form
    808,961.38/1,213,598.13 = 310,286.50/x
  3. Step 3: Cross multiply
    808,961.38x = 1,213,598.13 × 310,286.50
  4. Step 4: Simplify right side
    808,961.38x = 376,563,116,164.25
  5. Step 5: Solve for x
    x = 376,563,116,164.25/808,961.38
  6. Step 6: Final answer
    x = 465,489.61

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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.