Home / 809,967.22-1,214,934.42-210,915.12

Finding the Fourth Proportional to 809,967.22, 1,214,934.42 and 210,915.12

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Solution

The fourth proportional to 809,967.22, 1,214,934.42 and 210,915.12 is: 316,368.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,967.22 : 1,214,934.42 = 210,915.12 : x
  2. Step 2: Convert to fraction form
    809,967.22/1,214,934.42 = 210,915.12/x
  3. Step 3: Cross multiply
    809,967.22x = 1,214,934.42 × 210,915.12
  4. Step 4: Simplify right side
    809,967.22x = 256,248,038,986.43
  5. Step 5: Solve for x
    x = 256,248,038,986.43/809,967.22
  6. Step 6: Final answer
    x = 316,368.41

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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.