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Finding the Fourth Proportional to 577,298.34, 796,603.01 and 319,140.41

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Solution

The fourth proportional to 577,298.34, 796,603.01 and 319,140.41 is: 440,375.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,298.34 : 796,603.01 = 319,140.41 : x
  2. Step 2: Convert to fraction form
    577,298.34/796,603.01 = 319,140.41/x
  3. Step 3: Cross multiply
    577,298.34x = 796,603.01 × 319,140.41
  4. Step 4: Simplify right side
    577,298.34x = 254,228,205,639.92
  5. Step 5: Solve for x
    x = 254,228,205,639.92/577,298.34
  6. Step 6: Final answer
    x = 440,375.78

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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.