Home / 831,827.87-1,147,925.91-449,854.65

Finding the Fourth Proportional to 831,827.87, 1,147,925.91 and 449,854.65

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Solution

The fourth proportional to 831,827.87, 1,147,925.91 and 449,854.65 is: 620,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,827.87 : 1,147,925.91 = 449,854.65 : x
  2. Step 2: Convert to fraction form
    831,827.87/1,147,925.91 = 449,854.65/x
  3. Step 3: Cross multiply
    831,827.87x = 1,147,925.91 × 449,854.65
  4. Step 4: Simplify right side
    831,827.87x = 516,399,808,468.98
  5. Step 5: Solve for x
    x = 516,399,808,468.98/831,827.87
  6. Step 6: Final answer
    x = 620,801.28

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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.