Home / 808,720.20-1,115,672.76-468,991.44

Finding the Fourth Proportional to 808,720.20, 1,115,672.76 and 468,991.44

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Solution

The fourth proportional to 808,720.20, 1,115,672.76 and 468,991.44 is: 646,998.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,720.20 : 1,115,672.76 = 468,991.44 : x
  2. Step 2: Convert to fraction form
    808,720.20/1,115,672.76 = 468,991.44/x
  3. Step 3: Cross multiply
    808,720.20x = 1,115,672.76 × 468,991.44
  4. Step 4: Simplify right side
    808,720.20x = 523,240,974,281.17
  5. Step 5: Solve for x
    x = 523,240,974,281.17/808,720.20
  6. Step 6: Final answer
    x = 646,998.77

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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.