Home / 669,949.80-1,005,702.30-404,010.60

Finding the Fourth Proportional to 669,949.80, 1,005,702.30 and 404,010.60

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Solution

The fourth proportional to 669,949.80, 1,005,702.30 and 404,010.60 is: 606,484.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,949.80 : 1,005,702.30 = 404,010.60 : x
  2. Step 2: Convert to fraction form
    669,949.80/1,005,702.30 = 404,010.60/x
  3. Step 3: Cross multiply
    669,949.80x = 1,005,702.30 × 404,010.60
  4. Step 4: Simplify right side
    669,949.80x = 406,314,389,644.38
  5. Step 5: Solve for x
    x = 406,314,389,644.38/669,949.80
  6. Step 6: Final answer
    x = 606,484.83

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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.