Home / 665,330.10-996,846.98-309,614.55

Finding the Fourth Proportional to 665,330.10, 996,846.98 and 309,614.55

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Solution

The fourth proportional to 665,330.10, 996,846.98 and 309,614.55 is: 463,887.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,330.10 : 996,846.98 = 309,614.55 : x
  2. Step 2: Convert to fraction form
    665,330.10/996,846.98 = 309,614.55/x
  3. Step 3: Cross multiply
    665,330.10x = 996,846.98 × 309,614.55
  4. Step 4: Simplify right side
    665,330.10x = 308,638,327,583.49
  5. Step 5: Solve for x
    x = 308,638,327,583.49/665,330.10
  6. Step 6: Final answer
    x = 463,887.52

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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.