Home / 687,441.73-1,030,762.92-459,997.24

Finding the Fourth Proportional to 687,441.73, 1,030,762.92 and 459,997.24

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Solution

The fourth proportional to 687,441.73, 1,030,762.92 and 459,997.24 is: 689,728.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,441.73 : 1,030,762.92 = 459,997.24 : x
  2. Step 2: Convert to fraction form
    687,441.73/1,030,762.92 = 459,997.24/x
  3. Step 3: Cross multiply
    687,441.73x = 1,030,762.92 × 459,997.24
  4. Step 4: Simplify right side
    687,441.73x = 474,148,093,140.53
  5. Step 5: Solve for x
    x = 474,148,093,140.53/687,441.73
  6. Step 6: Final answer
    x = 689,728.42

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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.