Home / 808,115.76-1,115,249.85-445,538.93

Finding the Fourth Proportional to 808,115.76, 1,115,249.85 and 445,538.93

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Solution

The fourth proportional to 808,115.76, 1,115,249.85 and 445,538.93 is: 614,871.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,115.76 : 1,115,249.85 = 445,538.93 : x
  2. Step 2: Convert to fraction form
    808,115.76/1,115,249.85 = 445,538.93/x
  3. Step 3: Cross multiply
    808,115.76x = 1,115,249.85 × 445,538.93
  4. Step 4: Simplify right side
    808,115.76x = 496,887,219,275.41
  5. Step 5: Solve for x
    x = 496,887,219,275.41/808,115.76
  6. Step 6: Final answer
    x = 614,871.34

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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.