Home / 816,470.35-1,224,722.39-297,127.83

Finding the Fourth Proportional to 816,470.35, 1,224,722.39 and 297,127.83

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Solution

The fourth proportional to 816,470.35, 1,224,722.39 and 297,127.83 is: 445,697.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,470.35 : 1,224,722.39 = 297,127.83 : x
  2. Step 2: Convert to fraction form
    816,470.35/1,224,722.39 = 297,127.83/x
  3. Step 3: Cross multiply
    816,470.35x = 1,224,722.39 × 297,127.83
  4. Step 4: Simplify right side
    816,470.35x = 363,899,106,093.11
  5. Step 5: Solve for x
    x = 363,899,106,093.11/816,470.35
  6. Step 6: Final answer
    x = 445,697.88

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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.