Home / 669,904.30-1,004,856.45-404,183.80

Finding the Fourth Proportional to 669,904.30, 1,004,856.45 and 404,183.80

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Solution

The fourth proportional to 669,904.30, 1,004,856.45 and 404,183.80 is: 606,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,904.30 : 1,004,856.45 = 404,183.80 : x
  2. Step 2: Convert to fraction form
    669,904.30/1,004,856.45 = 404,183.80/x
  3. Step 3: Cross multiply
    669,904.30x = 1,004,856.45 × 404,183.80
  4. Step 4: Simplify right side
    669,904.30x = 406,146,698,415.51
  5. Step 5: Solve for x
    x = 406,146,698,415.51/669,904.30
  6. Step 6: Final answer
    x = 606,275.70

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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.