Home / 669,905.30-1,004,857.95-404,184.80

Finding the Fourth Proportional to 669,905.30, 1,004,857.95 and 404,184.80

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Solution

The fourth proportional to 669,905.30, 1,004,857.95 and 404,184.80 is: 606,277.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,905.30 : 1,004,857.95 = 404,184.80 : x
  2. Step 2: Convert to fraction form
    669,905.30/1,004,857.95 = 404,184.80/x
  3. Step 3: Cross multiply
    669,905.30x = 1,004,857.95 × 404,184.80
  4. Step 4: Simplify right side
    669,905.30x = 406,148,309,549.16
  5. Step 5: Solve for x
    x = 406,148,309,549.16/669,905.30
  6. Step 6: Final answer
    x = 606,277.20

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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.