Home / 806,915.79-1,210,023.63-274,293.81

Finding the Fourth Proportional to 806,915.79, 1,210,023.63 and 274,293.81

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Solution

The fourth proportional to 806,915.79, 1,210,023.63 and 274,293.81 is: 411,321.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,915.79 : 1,210,023.63 = 274,293.81 : x
  2. Step 2: Convert to fraction form
    806,915.79/1,210,023.63 = 274,293.81/x
  3. Step 3: Cross multiply
    806,915.79x = 1,210,023.63 × 274,293.81
  4. Step 4: Simplify right side
    806,915.79x = 331,901,991,662.73
  5. Step 5: Solve for x
    x = 331,901,991,662.73/806,915.79
  6. Step 6: Final answer
    x = 411,321.72

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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.