Home / 712,246.96-982,863.48-389,895.31

Finding the Fourth Proportional to 712,246.96, 982,863.48 and 389,895.31

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Solution

The fourth proportional to 712,246.96, 982,863.48 and 389,895.31 is: 538,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,246.96 : 982,863.48 = 389,895.31 : x
  2. Step 2: Convert to fraction form
    712,246.96/982,863.48 = 389,895.31/x
  3. Step 3: Cross multiply
    712,246.96x = 982,863.48 × 389,895.31
  4. Step 4: Simplify right side
    712,246.96x = 383,213,861,222.28
  5. Step 5: Solve for x
    x = 383,213,861,222.28/712,246.96
  6. Step 6: Final answer
    x = 538,035.10

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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.