Home / 726,644.10-1,089,836.55-459,927.30

Finding the Fourth Proportional to 726,644.10, 1,089,836.55 and 459,927.30

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Solution

The fourth proportional to 726,644.10, 1,089,836.55 and 459,927.30 is: 689,808.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,644.10 : 1,089,836.55 = 459,927.30 : x
  2. Step 2: Convert to fraction form
    726,644.10/1,089,836.55 = 459,927.30/x
  3. Step 3: Cross multiply
    726,644.10x = 1,089,836.55 × 459,927.30
  4. Step 4: Simplify right side
    726,644.10x = 501,245,581,882.82
  5. Step 5: Solve for x
    x = 501,245,581,882.82/726,644.10
  6. Step 6: Final answer
    x = 689,808.92

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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.