Home / 746,307.72-1,119,456-213,829.20

Finding the Fourth Proportional to 746,307.72, 1,119,456 and 213,829.20

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Solution

The fourth proportional to 746,307.72, 1,119,456 and 213,829.20 is: 320,742.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,307.72 : 1,119,456 = 213,829.20 : x
  2. Step 2: Convert to fraction form
    746,307.72/1,119,456 = 213,829.20/x
  3. Step 3: Cross multiply
    746,307.72x = 1,119,456 × 213,829.20
  4. Step 4: Simplify right side
    746,307.72x = 239,372,380,915.20
  5. Step 5: Solve for x
    x = 239,372,380,915.20/746,307.72
  6. Step 6: Final answer
    x = 320,742.20

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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.