Home / 831,829.87-1,147,928.67-449,856.65

Finding the Fourth Proportional to 831,829.87, 1,147,928.67 and 449,856.65

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Solution

The fourth proportional to 831,829.87, 1,147,928.67 and 449,856.65 is: 620,804.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,829.87 : 1,147,928.67 = 449,856.65 : x
  2. Step 2: Convert to fraction form
    831,829.87/1,147,928.67 = 449,856.65/x
  3. Step 3: Cross multiply
    831,829.87x = 1,147,928.67 × 449,856.65
  4. Step 4: Simplify right side
    831,829.87x = 516,403,345,925.16
  5. Step 5: Solve for x
    x = 516,403,345,925.16/831,829.87
  6. Step 6: Final answer
    x = 620,804.04

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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.