Home / 712,790.82-983,652.15-386,104.50

Finding the Fourth Proportional to 712,790.82, 983,652.15 and 386,104.50

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Solution

The fourth proportional to 712,790.82, 983,652.15 and 386,104.50 is: 532,824.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,790.82 : 983,652.15 = 386,104.50 : x
  2. Step 2: Convert to fraction form
    712,790.82/983,652.15 = 386,104.50/x
  3. Step 3: Cross multiply
    712,790.82x = 983,652.15 × 386,104.50
  4. Step 4: Simplify right side
    712,790.82x = 379,792,521,549.68
  5. Step 5: Solve for x
    x = 379,792,521,549.68/712,790.82
  6. Step 6: Final answer
    x = 532,824.65

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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.