Home / 851,489.40-1,175,057.82-469,507.80

Finding the Fourth Proportional to 851,489.40, 1,175,057.82 and 469,507.80

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Solution

The fourth proportional to 851,489.40, 1,175,057.82 and 469,507.80 is: 647,922.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,489.40 : 1,175,057.82 = 469,507.80 : x
  2. Step 2: Convert to fraction form
    851,489.40/1,175,057.82 = 469,507.80/x
  3. Step 3: Cross multiply
    851,489.40x = 1,175,057.82 × 469,507.80
  4. Step 4: Simplify right side
    851,489.40x = 551,698,811,941.00
  5. Step 5: Solve for x
    x = 551,698,811,941.00/851,489.40
  6. Step 6: Final answer
    x = 647,922.11

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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.