Home / 669,781.20-1,004,088.60-403,258.80

Finding the Fourth Proportional to 669,781.20, 1,004,088.60 and 403,258.80

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Solution

The fourth proportional to 669,781.20, 1,004,088.60 and 403,258.80 is: 604,537.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,781.20 : 1,004,088.60 = 403,258.80 : x
  2. Step 2: Convert to fraction form
    669,781.20/1,004,088.60 = 403,258.80/x
  3. Step 3: Cross multiply
    669,781.20x = 1,004,088.60 × 403,258.80
  4. Step 4: Simplify right side
    669,781.20x = 404,907,563,929.68
  5. Step 5: Solve for x
    x = 404,907,563,929.68/669,781.20
  6. Step 6: Final answer
    x = 604,537.07

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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.