Home / 672,090.40-1,008,135.60-356,384.80

Finding the Fourth Proportional to 672,090.40, 1,008,135.60 and 356,384.80

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Solution

The fourth proportional to 672,090.40, 1,008,135.60 and 356,384.80 is: 534,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,090.40 : 1,008,135.60 = 356,384.80 : x
  2. Step 2: Convert to fraction form
    672,090.40/1,008,135.60 = 356,384.80/x
  3. Step 3: Cross multiply
    672,090.40x = 1,008,135.60 × 356,384.80
  4. Step 4: Simplify right side
    672,090.40x = 359,284,204,178.88
  5. Step 5: Solve for x
    x = 359,284,204,178.88/672,090.40
  6. Step 6: Final answer
    x = 534,577.20

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Similar ratio
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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.