Home / 455,835.40-683,753.10-329,864.20

Finding the Fourth Proportional to 455,835.40, 683,753.10 and 329,864.20

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Solution

The fourth proportional to 455,835.40, 683,753.10 and 329,864.20 is: 494,796.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,835.40 : 683,753.10 = 329,864.20 : x
  2. Step 2: Convert to fraction form
    455,835.40/683,753.10 = 329,864.20/x
  3. Step 3: Cross multiply
    455,835.40x = 683,753.10 × 329,864.20
  4. Step 4: Simplify right side
    455,835.40x = 225,545,669,329.02
  5. Step 5: Solve for x
    x = 225,545,669,329.02/455,835.40
  6. Step 6: Final answer
    x = 494,796.30

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Double scale
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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.