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Finding the Fourth Proportional to 493,965.80, 741,639.90 and 307,341.80

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Solution

The fourth proportional to 493,965.80, 741,639.90 and 307,341.80 is: 461,442.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,965.80 : 741,639.90 = 307,341.80 : x
  2. Step 2: Convert to fraction form
    493,965.80/741,639.90 = 307,341.80/x
  3. Step 3: Cross multiply
    493,965.80x = 741,639.90 × 307,341.80
  4. Step 4: Simplify right side
    493,965.80x = 227,936,941,817.82
  5. Step 5: Solve for x
    x = 227,936,941,817.82/493,965.80
  6. Step 6: Final answer
    x = 461,442.76

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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.