Home / 669,869.80-1,004,804.70-491,410.60

Finding the Fourth Proportional to 669,869.80, 1,004,804.70 and 491,410.60

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Solution

The fourth proportional to 669,869.80, 1,004,804.70 and 491,410.60 is: 737,115.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,869.80 : 1,004,804.70 = 491,410.60 : x
  2. Step 2: Convert to fraction form
    669,869.80/1,004,804.70 = 491,410.60/x
  3. Step 3: Cross multiply
    669,869.80x = 1,004,804.70 × 491,410.60
  4. Step 4: Simplify right side
    669,869.80x = 493,771,680,509.82
  5. Step 5: Solve for x
    x = 493,771,680,509.82/669,869.80
  6. Step 6: Final answer
    x = 737,115.90

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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.