Home / 808,756.38-1,213,290.09-310,081.50

Finding the Fourth Proportional to 808,756.38, 1,213,290.09 and 310,081.50

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Solution

The fourth proportional to 808,756.38, 1,213,290.09 and 310,081.50 is: 465,181.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,756.38 : 1,213,290.09 = 310,081.50 : x
  2. Step 2: Convert to fraction form
    808,756.38/1,213,290.09 = 310,081.50/x
  3. Step 3: Cross multiply
    808,756.38x = 1,213,290.09 × 310,081.50
  4. Step 4: Simplify right side
    808,756.38x = 376,218,811,042.34
  5. Step 5: Solve for x
    x = 376,218,811,042.34/808,756.38
  6. Step 6: Final answer
    x = 465,181.88

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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.