Home / 455,932.60-683,898.90-140,486.20

Finding the Fourth Proportional to 455,932.60, 683,898.90 and 140,486.20

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Solution

The fourth proportional to 455,932.60, 683,898.90 and 140,486.20 is: 210,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,932.60 : 683,898.90 = 140,486.20 : x
  2. Step 2: Convert to fraction form
    455,932.60/683,898.90 = 140,486.20/x
  3. Step 3: Cross multiply
    455,932.60x = 683,898.90 × 140,486.20
  4. Step 4: Simplify right side
    455,932.60x = 96,078,357,645.18
  5. Step 5: Solve for x
    x = 96,078,357,645.18/455,932.60
  6. Step 6: Final answer
    x = 210,729.30

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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.