Home / 755,422.40-1,133,133.60-419,499.20

Finding the Fourth Proportional to 755,422.40, 1,133,133.60 and 419,499.20

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Solution

The fourth proportional to 755,422.40, 1,133,133.60 and 419,499.20 is: 629,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,422.40 : 1,133,133.60 = 419,499.20 : x
  2. Step 2: Convert to fraction form
    755,422.40/1,133,133.60 = 419,499.20/x
  3. Step 3: Cross multiply
    755,422.40x = 1,133,133.60 × 419,499.20
  4. Step 4: Simplify right side
    755,422.40x = 475,348,638,693.12
  5. Step 5: Solve for x
    x = 475,348,638,693.12/755,422.40
  6. Step 6: Final answer
    x = 629,248.80

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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.