Home / 791,642.21-1,092,448.62-447,432.36

Finding the Fourth Proportional to 791,642.21, 1,092,448.62 and 447,432.36

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Solution

The fourth proportional to 791,642.21, 1,092,448.62 and 447,432.36 is: 617,446.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,642.21 : 1,092,448.62 = 447,432.36 : x
  2. Step 2: Convert to fraction form
    791,642.21/1,092,448.62 = 447,432.36/x
  3. Step 3: Cross multiply
    791,642.21x = 1,092,448.62 × 447,432.36
  4. Step 4: Simplify right side
    791,642.21x = 488,796,860,128.66
  5. Step 5: Solve for x
    x = 488,796,860,128.66/791,642.21
  6. Step 6: Final answer
    x = 617,446.69

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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.