Home / 726,774.62-1,089,359.10-300,075.20

Finding the Fourth Proportional to 726,774.62, 1,089,359.10 and 300,075.20

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Solution

The fourth proportional to 726,774.62, 1,089,359.10 and 300,075.20 is: 449,781.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,774.62 : 1,089,359.10 = 300,075.20 : x
  2. Step 2: Convert to fraction form
    726,774.62/1,089,359.10 = 300,075.20/x
  3. Step 3: Cross multiply
    726,774.62x = 1,089,359.10 × 300,075.20
  4. Step 4: Simplify right side
    726,774.62x = 326,889,644,357.53
  5. Step 5: Solve for x
    x = 326,889,644,357.53/726,774.62
  6. Step 6: Final answer
    x = 449,781.32

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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.