Home / 891,021.80-1,336,495.98-322,416.38

Finding the Fourth Proportional to 891,021.80, 1,336,495.98 and 322,416.38

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Solution

The fourth proportional to 891,021.80, 1,336,495.98 and 322,416.38 is: 483,611.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,021.80 : 1,336,495.98 = 322,416.38 : x
  2. Step 2: Convert to fraction form
    891,021.80/1,336,495.98 = 322,416.38/x
  3. Step 3: Cross multiply
    891,021.80x = 1,336,495.98 × 322,416.38
  4. Step 4: Simplify right side
    891,021.80x = 430,908,195,756.15
  5. Step 5: Solve for x
    x = 430,908,195,756.15/891,021.80
  6. Step 6: Final answer
    x = 483,611.28

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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.