Home / 426,986.32-589,157.40-257,229.76

Finding the Fourth Proportional to 426,986.32, 589,157.40 and 257,229.76

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Solution

The fourth proportional to 426,986.32, 589,157.40 and 257,229.76 is: 354,926.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,986.32 : 589,157.40 = 257,229.76 : x
  2. Step 2: Convert to fraction form
    426,986.32/589,157.40 = 257,229.76/x
  3. Step 3: Cross multiply
    426,986.32x = 589,157.40 × 257,229.76
  4. Step 4: Simplify right side
    426,986.32x = 151,548,816,604.22
  5. Step 5: Solve for x
    x = 151,548,816,604.22/426,986.32
  6. Step 6: Final answer
    x = 354,926.63

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1.5x scale

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.