Home / 455,904.60-683,856.90-140,458.20

Finding the Fourth Proportional to 455,904.60, 683,856.90 and 140,458.20

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Solution

The fourth proportional to 455,904.60, 683,856.90 and 140,458.20 is: 210,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,904.60 : 683,856.90 = 140,458.20 : x
  2. Step 2: Convert to fraction form
    455,904.60/683,856.90 = 140,458.20/x
  3. Step 3: Cross multiply
    455,904.60x = 683,856.90 × 140,458.20
  4. Step 4: Simplify right side
    455,904.60x = 96,053,309,231.58
  5. Step 5: Solve for x
    x = 96,053,309,231.58/455,904.60
  6. Step 6: Final answer
    x = 210,687.30

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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.