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Finding the Third Proportional to 443,345.91 and 631,803.80

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Solution

The third proportional to 443,345.91 and 631,803.80 is: 900,371.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,345.91 : 631,803.80 = 631,803.80 : x
  2. Step 2: Convert to fraction form
    443,345.91/631,803.80 = 631,803.80/x
  3. Step 3: Cross multiply
    443,345.91x = 631,803.80 × 631,803.80
  4. Step 4: Simplify right side
    443,345.91x = 399,176,037,745.67
  5. Step 5: Solve for x
    x = 399,176,037,745.67/443,345.91
  6. Step 6: Final answer
    x = 900,371.54

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.