Home / 657,234.60-985,122.90-257,742.60

Finding the Fourth Proportional to 657,234.60, 985,122.90 and 257,742.60

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Solution

The fourth proportional to 657,234.60, 985,122.90 and 257,742.60 is: 386,328.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,234.60 : 985,122.90 = 257,742.60 : x
  2. Step 2: Convert to fraction form
    657,234.60/985,122.90 = 257,742.60/x
  3. Step 3: Cross multiply
    657,234.60x = 985,122.90 × 257,742.60
  4. Step 4: Simplify right side
    657,234.60x = 253,908,137,565.54
  5. Step 5: Solve for x
    x = 253,908,137,565.54/657,234.60
  6. Step 6: Final answer
    x = 386,328.01

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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.