Home / 770,676.28-1,156,346.58-321,485.56

Finding the Fourth Proportional to 770,676.28, 1,156,346.58 and 321,485.56

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Solution

The fourth proportional to 770,676.28, 1,156,346.58 and 321,485.56 is: 482,366.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,676.28 : 1,156,346.58 = 321,485.56 : x
  2. Step 2: Convert to fraction form
    770,676.28/1,156,346.58 = 321,485.56/x
  3. Step 3: Cross multiply
    770,676.28x = 1,156,346.58 × 321,485.56
  4. Step 4: Simplify right side
    770,676.28x = 371,748,727,825.39
  5. Step 5: Solve for x
    x = 371,748,727,825.39/770,676.28
  6. Step 6: Final answer
    x = 482,366.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.