Home / 831,555.46-1,147,546.40-449,582.26

Finding the Fourth Proportional to 831,555.46, 1,147,546.40 and 449,582.26

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Solution

The fourth proportional to 831,555.46, 1,147,546.40 and 449,582.26 is: 620,423.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,555.46 : 1,147,546.40 = 449,582.26 : x
  2. Step 2: Convert to fraction form
    831,555.46/1,147,546.40 = 449,582.26/x
  3. Step 3: Cross multiply
    831,555.46x = 1,147,546.40 × 449,582.26
  4. Step 4: Simplify right side
    831,555.46x = 515,916,503,966.86
  5. Step 5: Solve for x
    x = 515,916,503,966.86/831,555.46
  6. Step 6: Final answer
    x = 620,423.45

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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.