Home / 681,738.60-1,022,915.10-326,615.40

Finding the Fourth Proportional to 681,738.60, 1,022,915.10 and 326,615.40

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Solution

The fourth proportional to 681,738.60, 1,022,915.10 and 326,615.40 is: 490,070.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,738.60 : 1,022,915.10 = 326,615.40 : x
  2. Step 2: Convert to fraction form
    681,738.60/1,022,915.10 = 326,615.40/x
  3. Step 3: Cross multiply
    681,738.60x = 1,022,915.10 × 326,615.40
  4. Step 4: Simplify right side
    681,738.60x = 334,099,824,552.54
  5. Step 5: Solve for x
    x = 334,099,824,552.54/681,738.60
  6. Step 6: Final answer
    x = 490,070.28

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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.