Home / 811,199.43-1,215,941.08-305,541.63

Finding the Fourth Proportional to 811,199.43, 1,215,941.08 and 305,541.63

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Solution

The fourth proportional to 811,199.43, 1,215,941.08 and 305,541.63 is: 457,989.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,199.43 : 1,215,941.08 = 305,541.63 : x
  2. Step 2: Convert to fraction form
    811,199.43/1,215,941.08 = 305,541.63/x
  3. Step 3: Cross multiply
    811,199.43x = 1,215,941.08 × 305,541.63
  4. Step 4: Simplify right side
    811,199.43x = 371,520,619,567.16
  5. Step 5: Solve for x
    x = 371,520,619,567.16/811,199.43
  6. Step 6: Final answer
    x = 457,989.25

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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.