Home / 669,881.40-1,004,822.10-404,160.90

Finding the Fourth Proportional to 669,881.40, 1,004,822.10 and 404,160.90

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Solution

The fourth proportional to 669,881.40, 1,004,822.10 and 404,160.90 is: 606,241.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,881.40 : 1,004,822.10 = 404,160.90 : x
  2. Step 2: Convert to fraction form
    669,881.40/1,004,822.10 = 404,160.90/x
  3. Step 3: Cross multiply
    669,881.40x = 1,004,822.10 × 404,160.90
  4. Step 4: Simplify right side
    669,881.40x = 406,109,804,275.89
  5. Step 5: Solve for x
    x = 406,109,804,275.89/669,881.40
  6. Step 6: Final answer
    x = 606,241.35

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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.