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Finding the Fourth Proportional to 577,343.88, 796,702.35 and 319,205.88

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Solution

The fourth proportional to 577,343.88, 796,702.35 and 319,205.88 is: 440,486.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,343.88 : 796,702.35 = 319,205.88 : x
  2. Step 2: Convert to fraction form
    577,343.88/796,702.35 = 319,205.88/x
  3. Step 3: Cross multiply
    577,343.88x = 796,702.35 × 319,205.88
  4. Step 4: Simplify right side
    577,343.88x = 254,312,074,729.82
  5. Step 5: Solve for x
    x = 254,312,074,729.82/577,343.88
  6. Step 6: Final answer
    x = 440,486.31

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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.