Home / 752,663.90-1,039,538.23-495,689.58

Finding the Fourth Proportional to 752,663.90, 1,039,538.23 and 495,689.58

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Solution

The fourth proportional to 752,663.90, 1,039,538.23 and 495,689.58 is: 684,619.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,663.90 : 1,039,538.23 = 495,689.58 : x
  2. Step 2: Convert to fraction form
    752,663.90/1,039,538.23 = 495,689.58/x
  3. Step 3: Cross multiply
    752,663.90x = 1,039,538.23 × 495,689.58
  4. Step 4: Simplify right side
    752,663.90x = 515,288,267,383.42
  5. Step 5: Solve for x
    x = 515,288,267,383.42/752,663.90
  6. Step 6: Final answer
    x = 684,619.34

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1.5x scale

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.