Home / 811,197.43-1,215,938.08-305,539.63

Finding the Fourth Proportional to 811,197.43, 1,215,938.08 and 305,539.63

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Solution

The fourth proportional to 811,197.43, 1,215,938.08 and 305,539.63 is: 457,986.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,197.43 : 1,215,938.08 = 305,539.63 : x
  2. Step 2: Convert to fraction form
    811,197.43/1,215,938.08 = 305,539.63/x
  3. Step 3: Cross multiply
    811,197.43x = 1,215,938.08 × 305,539.63
  4. Step 4: Simplify right side
    811,197.43x = 371,517,264,222.57
  5. Step 5: Solve for x
    x = 371,517,264,222.57/811,197.43
  6. Step 6: Final answer
    x = 457,986.24

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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.