Home / 831,943.55-1,148,081.09-449,969.42

Finding the Fourth Proportional to 831,943.55, 1,148,081.09 and 449,969.42

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Solution

The fourth proportional to 831,943.55, 1,148,081.09 and 449,969.42 is: 620,957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,943.55 : 1,148,081.09 = 449,969.42 : x
  2. Step 2: Convert to fraction form
    831,943.55/1,148,081.09 = 449,969.42/x
  3. Step 3: Cross multiply
    831,943.55x = 1,148,081.09 × 449,969.42
  4. Step 4: Simplify right side
    831,943.55x = 516,601,374,190.02
  5. Step 5: Solve for x
    x = 516,601,374,190.02/831,943.55
  6. Step 6: Final answer
    x = 620,957.25

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1.5x scale

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.