Home / 3,939,090.75-5,908,636.13-947,274.75

Finding the Fourth Proportional to 3,939,090.75, 5,908,636.13 and 947,274.75

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Solution

The fourth proportional to 3,939,090.75, 5,908,636.13 and 947,274.75 is: 1,420,912.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,090.75 : 5,908,636.13 = 947,274.75 : x
  2. Step 2: Convert to fraction form
    3,939,090.75/5,908,636.13 = 947,274.75/x
  3. Step 3: Cross multiply
    3,939,090.75x = 5,908,636.13 × 947,274.75
  4. Step 4: Simplify right side
    3,939,090.75x = 5,597,101,808,150.34
  5. Step 5: Solve for x
    x = 5,597,101,808,150.34/3,939,090.75
  6. Step 6: Final answer
    x = 1,420,912.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.