Home / 782,343.60-1,079,698.68-495,759.12

Finding the Fourth Proportional to 782,343.60, 1,079,698.68 and 495,759.12

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Solution

The fourth proportional to 782,343.60, 1,079,698.68 and 495,759.12 is: 684,188.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,343.60 : 1,079,698.68 = 495,759.12 : x
  2. Step 2: Convert to fraction form
    782,343.60/1,079,698.68 = 495,759.12/x
  3. Step 3: Cross multiply
    782,343.60x = 1,079,698.68 × 495,759.12
  4. Step 4: Simplify right side
    782,343.60x = 535,270,467,461.96
  5. Step 5: Solve for x
    x = 535,270,467,461.96/782,343.60
  6. Step 6: Final answer
    x = 684,188.47

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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.