Home / 712,115.96-982,719.94-389,826.27

Finding the Fourth Proportional to 712,115.96, 982,719.94 and 389,826.27

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Solution

The fourth proportional to 712,115.96, 982,719.94 and 389,826.27 is: 537,960.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,115.96 : 982,719.94 = 389,826.27 : x
  2. Step 2: Convert to fraction form
    712,115.96/982,719.94 = 389,826.27/x
  3. Step 3: Cross multiply
    712,115.96x = 982,719.94 × 389,826.27
  4. Step 4: Simplify right side
    712,115.96x = 383,090,048,664.82
  5. Step 5: Solve for x
    x = 383,090,048,664.82/712,115.96
  6. Step 6: Final answer
    x = 537,960.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.