Home / 672,130.40-1,008,195.60-504,168.80

Finding the Fourth Proportional to 672,130.40, 1,008,195.60 and 504,168.80

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Solution

The fourth proportional to 672,130.40, 1,008,195.60 and 504,168.80 is: 756,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,130.40 : 1,008,195.60 = 504,168.80 : x
  2. Step 2: Convert to fraction form
    672,130.40/1,008,195.60 = 504,168.80/x
  3. Step 3: Cross multiply
    672,130.40x = 1,008,195.60 × 504,168.80
  4. Step 4: Simplify right side
    672,130.40x = 508,300,765,817.28
  5. Step 5: Solve for x
    x = 508,300,765,817.28/672,130.40
  6. Step 6: Final answer
    x = 756,253.20

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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.