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Finding the Fourth Proportional to 493,964.80, 741,638.40 and 307,340.80

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Solution

The fourth proportional to 493,964.80, 741,638.40 and 307,340.80 is: 461,441.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,964.80 : 741,638.40 = 307,340.80 : x
  2. Step 2: Convert to fraction form
    493,964.80/741,638.40 = 307,340.80/x
  3. Step 3: Cross multiply
    493,964.80x = 741,638.40 × 307,340.80
  4. Step 4: Simplify right side
    493,964.80x = 227,935,739,166.72
  5. Step 5: Solve for x
    x = 227,935,739,166.72/493,964.80
  6. Step 6: Final answer
    x = 461,441.26

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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.