Home / 726,728.50-1,001,845.98-511,199.62

Finding the Fourth Proportional to 726,728.50, 1,001,845.98 and 511,199.62

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Solution

The fourth proportional to 726,728.50, 1,001,845.98 and 511,199.62 is: 704,724.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,728.50 : 1,001,845.98 = 511,199.62 : x
  2. Step 2: Convert to fraction form
    726,728.50/1,001,845.98 = 511,199.62/x
  3. Step 3: Cross multiply
    726,728.50x = 1,001,845.98 × 511,199.62
  4. Step 4: Simplify right side
    726,728.50x = 512,143,284,274.53
  5. Step 5: Solve for x
    x = 512,143,284,274.53/726,728.50
  6. Step 6: Final answer
    x = 704,724.37

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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.