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Finding the Fourth Proportional to 667,239.42, 920,803.09 and 365,433.42

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Solution

The fourth proportional to 667,239.42, 920,803.09 and 365,433.42 is: 504,305.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,239.42 : 920,803.09 = 365,433.42 : x
  2. Step 2: Convert to fraction form
    667,239.42/920,803.09 = 365,433.42/x
  3. Step 3: Cross multiply
    667,239.42x = 920,803.09 × 365,433.42
  4. Step 4: Simplify right side
    667,239.42x = 336,492,225,549.88
  5. Step 5: Solve for x
    x = 336,492,225,549.88/667,239.42
  6. Step 6: Final answer
    x = 504,305.07

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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.