Home / 672,022.45-1,008,033.68-423,190.45

Finding the Fourth Proportional to 672,022.45, 1,008,033.68 and 423,190.45

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Solution

The fourth proportional to 672,022.45, 1,008,033.68 and 423,190.45 is: 634,785.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,022.45 : 1,008,033.68 = 423,190.45 : x
  2. Step 2: Convert to fraction form
    672,022.45/1,008,033.68 = 423,190.45/x
  3. Step 3: Cross multiply
    672,022.45x = 1,008,033.68 × 423,190.45
  4. Step 4: Simplify right side
    672,022.45x = 426,590,226,654.36
  5. Step 5: Solve for x
    x = 426,590,226,654.36/672,022.45
  6. Step 6: Final answer
    x = 634,785.68

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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.