Home / 672,183.20-926,989.34-490,607.48

Finding the Fourth Proportional to 672,183.20, 926,989.34 and 490,607.48

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Solution

The fourth proportional to 672,183.20, 926,989.34 and 490,607.48 is: 676,583.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,183.20 : 926,989.34 = 490,607.48 : x
  2. Step 2: Convert to fraction form
    672,183.20/926,989.34 = 490,607.48/x
  3. Step 3: Cross multiply
    672,183.20x = 926,989.34 × 490,607.48
  4. Step 4: Simplify right side
    672,183.20x = 454,787,904,084.26
  5. Step 5: Solve for x
    x = 454,787,904,084.26/672,183.20
  6. Step 6: Final answer
    x = 676,583.26

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.