Home / 831,885.71-1,148,002.28-449,912.49

Finding the Fourth Proportional to 831,885.71, 1,148,002.28 and 449,912.49

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Solution

The fourth proportional to 831,885.71, 1,148,002.28 and 449,912.49 is: 620,879.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,885.71 : 1,148,002.28 = 449,912.49 : x
  2. Step 2: Convert to fraction form
    831,885.71/1,148,002.28 = 449,912.49/x
  3. Step 3: Cross multiply
    831,885.71x = 1,148,002.28 × 449,912.49
  4. Step 4: Simplify right side
    831,885.71x = 516,500,562,070.92
  5. Step 5: Solve for x
    x = 516,500,562,070.92/831,885.71
  6. Step 6: Final answer
    x = 620,879.24

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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.