Home / 808,103.32-1,212,154.94-767,695.12

Finding the Fourth Proportional to 808,103.32, 1,212,154.94 and 767,695.12

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Solution

The fourth proportional to 808,103.32, 1,212,154.94 and 767,695.12 is: 1,151,542.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,103.32 : 1,212,154.94 = 767,695.12 : x
  2. Step 2: Convert to fraction form
    808,103.32/1,212,154.94 = 767,695.12/x
  3. Step 3: Cross multiply
    808,103.32x = 1,212,154.94 × 767,695.12
  4. Step 4: Simplify right side
    808,103.32x = 930,565,431,010.74
  5. Step 5: Solve for x
    x = 930,565,431,010.74/808,103.32
  6. Step 6: Final answer
    x = 1,151,542.64

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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.