Home / 831,572.64-1,147,567.73-449,599.42

Finding the Fourth Proportional to 831,572.64, 1,147,567.73 and 449,599.42

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Solution

The fourth proportional to 831,572.64, 1,147,567.73 and 449,599.42 is: 620,445.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,572.64 : 1,147,567.73 = 449,599.42 : x
  2. Step 2: Convert to fraction form
    831,572.64/1,147,567.73 = 449,599.42/x
  3. Step 3: Cross multiply
    831,572.64x = 1,147,567.73 × 449,599.42
  4. Step 4: Simplify right side
    831,572.64x = 515,945,785,818.72
  5. Step 5: Solve for x
    x = 515,945,785,818.72/831,572.64
  6. Step 6: Final answer
    x = 620,445.84

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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.