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Finding the Fourth Proportional to 577,410.53, 796,431.17 and 376,478.69

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Solution

The fourth proportional to 577,410.53, 796,431.17 and 376,478.69 is: 519,282.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,410.53 : 796,431.17 = 376,478.69 : x
  2. Step 2: Convert to fraction form
    577,410.53/796,431.17 = 376,478.69/x
  3. Step 3: Cross multiply
    577,410.53x = 796,431.17 × 376,478.69
  4. Step 4: Simplify right side
    577,410.53x = 299,839,361,674.37
  5. Step 5: Solve for x
    x = 299,839,361,674.37/577,410.53
  6. Step 6: Final answer
    x = 519,282.81

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Double scale
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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.