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Finding the Fourth Proportional to 577,429.62, 796,858.05 and 319,323.94

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Solution

The fourth proportional to 577,429.62, 796,858.05 and 319,323.94 is: 440,669.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,429.62 : 796,858.05 = 319,323.94 : x
  2. Step 2: Convert to fraction form
    577,429.62/796,858.05 = 319,323.94/x
  3. Step 3: Cross multiply
    577,429.62x = 796,858.05 × 319,323.94
  4. Step 4: Simplify right side
    577,429.62x = 254,455,846,565.81
  5. Step 5: Solve for x
    x = 254,455,846,565.81/577,429.62
  6. Step 6: Final answer
    x = 440,669.89

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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.