Home / 787,843.48-1,087,114.62-443,621.56

Finding the Fourth Proportional to 787,843.48, 1,087,114.62 and 443,621.56

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Solution

The fourth proportional to 787,843.48, 1,087,114.62 and 443,621.56 is: 612,136.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,843.48 : 1,087,114.62 = 443,621.56 : x
  2. Step 2: Convert to fraction form
    787,843.48/1,087,114.62 = 443,621.56/x
  3. Step 3: Cross multiply
    787,843.48x = 1,087,114.62 × 443,621.56
  4. Step 4: Simplify right side
    787,843.48x = 482,267,483,623.21
  5. Step 5: Solve for x
    x = 482,267,483,623.21/787,843.48
  6. Step 6: Final answer
    x = 612,136.16

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.