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Finding the Fourth Proportional to 635,421.87, 953,317.28 and 256,146.86

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Solution

The fourth proportional to 635,421.87, 953,317.28 and 256,146.86 is: 384,294.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,421.87 : 953,317.28 = 256,146.86 : x
  2. Step 2: Convert to fraction form
    635,421.87/953,317.28 = 256,146.86/x
  3. Step 3: Cross multiply
    635,421.87x = 953,317.28 × 256,146.86
  4. Step 4: Simplify right side
    635,421.87x = 244,189,230,879.40
  5. Step 5: Solve for x
    x = 244,189,230,879.40/635,421.87
  6. Step 6: Final answer
    x = 384,294.66

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Similar ratio
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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.