Home / 307,747.40-461,912.70-263,424.20

Finding the Fourth Proportional to 307,747.40, 461,912.70 and 263,424.20

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Solution

The fourth proportional to 307,747.40, 461,912.70 and 263,424.20 is: 395,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,747.40 : 461,912.70 = 263,424.20 : x
  2. Step 2: Convert to fraction form
    307,747.40/461,912.70 = 263,424.20/x
  3. Step 3: Cross multiply
    307,747.40x = 461,912.70 × 263,424.20
  4. Step 4: Simplify right side
    307,747.40x = 121,678,983,467.34
  5. Step 5: Solve for x
    x = 121,678,983,467.34/307,747.40
  6. Step 6: Final answer
    x = 395,385.90

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1.5x scale

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.