Home / 831,714.11-1,147,766.71-449,740.89

Finding the Fourth Proportional to 831,714.11, 1,147,766.71 and 449,740.89

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Solution

The fourth proportional to 831,714.11, 1,147,766.71 and 449,740.89 is: 620,643.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,714.11 : 1,147,766.71 = 449,740.89 : x
  2. Step 2: Convert to fraction form
    831,714.11/1,147,766.71 = 449,740.89/x
  3. Step 3: Cross multiply
    831,714.11x = 1,147,766.71 × 449,740.89
  4. Step 4: Simplify right side
    831,714.11x = 516,197,621,667.77
  5. Step 5: Solve for x
    x = 516,197,621,667.77/831,714.11
  6. Step 6: Final answer
    x = 620,643.10

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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.