Home / 755,464.40-1,133,196.60-422,997.20

Finding the Fourth Proportional to 755,464.40, 1,133,196.60 and 422,997.20

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Solution

The fourth proportional to 755,464.40, 1,133,196.60 and 422,997.20 is: 634,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,464.40 : 1,133,196.60 = 422,997.20 : x
  2. Step 2: Convert to fraction form
    755,464.40/1,133,196.60 = 422,997.20/x
  3. Step 3: Cross multiply
    755,464.40x = 1,133,196.60 × 422,997.20
  4. Step 4: Simplify right side
    755,464.40x = 479,338,988,849.52
  5. Step 5: Solve for x
    x = 479,338,988,849.52/755,464.40
  6. Step 6: Final answer
    x = 634,495.80

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Half scale
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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.