Home / 603,003.40-904,505.10-402,236.80

Finding the Fourth Proportional to 603,003.40, 904,505.10 and 402,236.80

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Solution

The fourth proportional to 603,003.40, 904,505.10 and 402,236.80 is: 603,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,003.40 : 904,505.10 = 402,236.80 : x
  2. Step 2: Convert to fraction form
    603,003.40/904,505.10 = 402,236.80/x
  3. Step 3: Cross multiply
    603,003.40x = 904,505.10 × 402,236.80
  4. Step 4: Simplify right side
    603,003.40x = 363,825,237,007.68
  5. Step 5: Solve for x
    x = 363,825,237,007.68/603,003.40
  6. Step 6: Final answer
    x = 603,355.20

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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.