Home / 989,596.20-1,484,199.90-324,748.20

Finding the Fourth Proportional to 989,596.20, 1,484,199.90 and 324,748.20

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Solution

The fourth proportional to 989,596.20, 1,484,199.90 and 324,748.20 is: 487,058.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,596.20 : 1,484,199.90 = 324,748.20 : x
  2. Step 2: Convert to fraction form
    989,596.20/1,484,199.90 = 324,748.20/x
  3. Step 3: Cross multiply
    989,596.20x = 1,484,199.90 × 324,748.20
  4. Step 4: Simplify right side
    989,596.20x = 481,991,245,965.18
  5. Step 5: Solve for x
    x = 481,991,245,965.18/989,596.20
  6. Step 6: Final answer
    x = 487,058.51

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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.