Home / 805,507.72-1,208,003.32-265,642.80

Finding the Fourth Proportional to 805,507.72, 1,208,003.32 and 265,642.80

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Solution

The fourth proportional to 805,507.72, 1,208,003.32 and 265,642.80 is: 398,379.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,507.72 : 1,208,003.32 = 265,642.80 : x
  2. Step 2: Convert to fraction form
    805,507.72/1,208,003.32 = 265,642.80/x
  3. Step 3: Cross multiply
    805,507.72x = 1,208,003.32 × 265,642.80
  4. Step 4: Simplify right side
    805,507.72x = 320,897,384,334.10
  5. Step 5: Solve for x
    x = 320,897,384,334.10/805,507.72
  6. Step 6: Final answer
    x = 398,379.03

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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.