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Finding the Fourth Proportional to 577,436.22, 796,867.13 and 319,330.53

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Solution

The fourth proportional to 577,436.22, 796,867.13 and 319,330.53 is: 440,678.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,436.22 : 796,867.13 = 319,330.53 : x
  2. Step 2: Convert to fraction form
    577,436.22/796,867.13 = 319,330.53/x
  3. Step 3: Cross multiply
    577,436.22x = 796,867.13 × 319,330.53
  4. Step 4: Simplify right side
    577,436.22x = 254,464,002,962.48
  5. Step 5: Solve for x
    x = 254,464,002,962.48/577,436.22
  6. Step 6: Final answer
    x = 440,678.98

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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.