Home / 873,814.20-1,311,036.90-305,279.26

Finding the Fourth Proportional to 873,814.20, 1,311,036.90 and 305,279.26

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Solution

The fourth proportional to 873,814.20, 1,311,036.90 and 305,279.26 is: 458,029.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,814.20 : 1,311,036.90 = 305,279.26 : x
  2. Step 2: Convert to fraction form
    873,814.20/1,311,036.90 = 305,279.26/x
  3. Step 3: Cross multiply
    873,814.20x = 1,311,036.90 × 305,279.26
  4. Step 4: Simplify right side
    873,814.20x = 400,232,374,664.69
  5. Step 5: Solve for x
    x = 400,232,374,664.69/873,814.20
  6. Step 6: Final answer
    x = 458,029.15

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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.