Home / 831,893.55-1,148,013.09-449,920.32

Finding the Fourth Proportional to 831,893.55, 1,148,013.09 and 449,920.32

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Solution

The fourth proportional to 831,893.55, 1,148,013.09 and 449,920.32 is: 620,890.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,893.55 : 1,148,013.09 = 449,920.32 : x
  2. Step 2: Convert to fraction form
    831,893.55/1,148,013.09 = 449,920.32/x
  3. Step 3: Cross multiply
    831,893.55x = 1,148,013.09 × 449,920.32
  4. Step 4: Simplify right side
    831,893.55x = 516,514,416,816.99
  5. Step 5: Solve for x
    x = 516,514,416,816.99/831,893.55
  6. Step 6: Final answer
    x = 620,890.04

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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.