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Finding the Fourth Proportional to 659,496.30, 989,244.45 and 446,919.90

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Solution

The fourth proportional to 659,496.30, 989,244.45 and 446,919.90 is: 670,379.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,496.30 : 989,244.45 = 446,919.90 : x
  2. Step 2: Convert to fraction form
    659,496.30/989,244.45 = 446,919.90/x
  3. Step 3: Cross multiply
    659,496.30x = 989,244.45 × 446,919.90
  4. Step 4: Simplify right side
    659,496.30x = 442,113,030,669.56
  5. Step 5: Solve for x
    x = 442,113,030,669.56/659,496.30
  6. Step 6: Final answer
    x = 670,379.85

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Double scale
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Similar ratio
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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.