Home / 831,867.51-1,147,977.93-449,894.30

Finding the Fourth Proportional to 831,867.51, 1,147,977.93 and 449,894.30

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Solution

The fourth proportional to 831,867.51, 1,147,977.93 and 449,894.30 is: 620,854.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,867.51 : 1,147,977.93 = 449,894.30 : x
  2. Step 2: Convert to fraction form
    831,867.51/1,147,977.93 = 449,894.30/x
  3. Step 3: Cross multiply
    831,867.51x = 1,147,977.93 × 449,894.30
  4. Step 4: Simplify right side
    831,867.51x = 516,468,721,492.91
  5. Step 5: Solve for x
    x = 516,468,721,492.91/831,867.51
  6. Step 6: Final answer
    x = 620,854.54

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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.