Home / 931,738.40-1,397,607.60-300,672.80

Finding the Fourth Proportional to 931,738.40, 1,397,607.60 and 300,672.80

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Solution

The fourth proportional to 931,738.40, 1,397,607.60 and 300,672.80 is: 451,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,738.40 : 1,397,607.60 = 300,672.80 : x
  2. Step 2: Convert to fraction form
    931,738.40/1,397,607.60 = 300,672.80/x
  3. Step 3: Cross multiply
    931,738.40x = 1,397,607.60 × 300,672.80
  4. Step 4: Simplify right side
    931,738.40x = 420,222,590,393.28
  5. Step 5: Solve for x
    x = 420,222,590,393.28/931,738.40
  6. Step 6: Final answer
    x = 451,009.20

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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.