Home / 743,396.24-1,115,136.72-210,875.60

Finding the Fourth Proportional to 743,396.24, 1,115,136.72 and 210,875.60

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Solution

The fourth proportional to 743,396.24, 1,115,136.72 and 210,875.60 is: 316,325.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,396.24 : 1,115,136.72 = 210,875.60 : x
  2. Step 2: Convert to fraction form
    743,396.24/1,115,136.72 = 210,875.60/x
  3. Step 3: Cross multiply
    743,396.24x = 1,115,136.72 × 210,875.60
  4. Step 4: Simplify right side
    743,396.24x = 235,155,124,912.03
  5. Step 5: Solve for x
    x = 235,155,124,912.03/743,396.24
  6. Step 6: Final answer
    x = 316,325.42

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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.