Home / 669,907.30-1,004,860.95-404,186.80

Finding the Fourth Proportional to 669,907.30, 1,004,860.95 and 404,186.80

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Solution

The fourth proportional to 669,907.30, 1,004,860.95 and 404,186.80 is: 606,280.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,907.30 : 1,004,860.95 = 404,186.80 : x
  2. Step 2: Convert to fraction form
    669,907.30/1,004,860.95 = 404,186.80/x
  3. Step 3: Cross multiply
    669,907.30x = 1,004,860.95 × 404,186.80
  4. Step 4: Simplify right side
    669,907.30x = 406,151,531,825.46
  5. Step 5: Solve for x
    x = 406,151,531,825.46/669,907.30
  6. Step 6: Final answer
    x = 606,280.20

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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.