Home / 459,540.40-689,310.60-353,252.20

Finding the Fourth Proportional to 459,540.40, 689,310.60 and 353,252.20

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Solution

The fourth proportional to 459,540.40, 689,310.60 and 353,252.20 is: 529,878.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,540.40 : 689,310.60 = 353,252.20 : x
  2. Step 2: Convert to fraction form
    459,540.40/689,310.60 = 353,252.20/x
  3. Step 3: Cross multiply
    459,540.40x = 689,310.60 × 353,252.20
  4. Step 4: Simplify right side
    459,540.40x = 243,500,485,933.32
  5. Step 5: Solve for x
    x = 243,500,485,933.32/459,540.40
  6. Step 6: Final answer
    x = 529,878.30

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Similar ratio
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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.