Home / 986,693.57-1,480,274.35-321,845.57

Finding the Fourth Proportional to 986,693.57, 1,480,274.35 and 321,845.57

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Solution

The fourth proportional to 986,693.57, 1,480,274.35 and 321,845.57 is: 482,844.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,693.57 : 1,480,274.35 = 321,845.57 : x
  2. Step 2: Convert to fraction form
    986,693.57/1,480,274.35 = 321,845.57/x
  3. Step 3: Cross multiply
    986,693.57x = 1,480,274.35 × 321,845.57
  4. Step 4: Simplify right side
    986,693.57x = 476,419,732,921.53
  5. Step 5: Solve for x
    x = 476,419,732,921.53/986,693.57
  6. Step 6: Final answer
    x = 482,844.67

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1.5x scale

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.