Home / 814,936-1,221,296.52-309,225.04

Finding the Fourth Proportional to 814,936, 1,221,296.52 and 309,225.04

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Solution

The fourth proportional to 814,936, 1,221,296.52 and 309,225.04 is: 463,417.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,936 : 1,221,296.52 = 309,225.04 : x
  2. Step 2: Convert to fraction form
    814,936/1,221,296.52 = 309,225.04/x
  3. Step 3: Cross multiply
    814,936x = 1,221,296.52 × 309,225.04
  4. Step 4: Simplify right side
    814,936x = 377,655,465,248.86
  5. Step 5: Solve for x
    x = 377,655,465,248.86/814,936
  6. Step 6: Final answer
    x = 463,417.33

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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.