Home / 756,168.21-1,043,288.27-449,999.15

Finding the Fourth Proportional to 756,168.21, 1,043,288.27 and 449,999.15

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Solution

The fourth proportional to 756,168.21, 1,043,288.27 and 449,999.15 is: 620,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,168.21 : 1,043,288.27 = 449,999.15 : x
  2. Step 2: Convert to fraction form
    756,168.21/1,043,288.27 = 449,999.15/x
  3. Step 3: Cross multiply
    756,168.21x = 1,043,288.27 × 449,999.15
  4. Step 4: Simplify right side
    756,168.21x = 469,478,829,347.90
  5. Step 5: Solve for x
    x = 469,478,829,347.90/756,168.21
  6. Step 6: Final answer
    x = 620,865.60

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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.