Home / 831,607.04-1,147,912.80-492,074.56

Finding the Fourth Proportional to 831,607.04, 1,147,912.80 and 492,074.56

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Solution

The fourth proportional to 831,607.04, 1,147,912.80 and 492,074.56 is: 679,237.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,607.04 : 1,147,912.80 = 492,074.56 : x
  2. Step 2: Convert to fraction form
    831,607.04/1,147,912.80 = 492,074.56/x
  3. Step 3: Cross multiply
    831,607.04x = 1,147,912.80 × 492,074.56
  4. Step 4: Simplify right side
    831,607.04x = 564,858,685,978.37
  5. Step 5: Solve for x
    x = 564,858,685,978.37/831,607.04
  6. Step 6: Final answer
    x = 679,237.50

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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.