Home / 447,002.75-670,504.12-131,459.66

Finding the Fourth Proportional to 447,002.75, 670,504.12 and 131,459.66

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Solution

The fourth proportional to 447,002.75, 670,504.12 and 131,459.66 is: 197,189.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,002.75 : 670,504.12 = 131,459.66 : x
  2. Step 2: Convert to fraction form
    447,002.75/670,504.12 = 131,459.66/x
  3. Step 3: Cross multiply
    447,002.75x = 670,504.12 × 131,459.66
  4. Step 4: Simplify right side
    447,002.75x = 88,144,243,643.80
  5. Step 5: Solve for x
    x = 88,144,243,643.80/447,002.75
  6. Step 6: Final answer
    x = 197,189.49

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Half scale
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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.