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Finding the Fourth Proportional to 677,838.78, 935,497.35 and 376,052.22

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Solution

The fourth proportional to 677,838.78, 935,497.35 and 376,052.22 is: 518,996.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,838.78 : 935,497.35 = 376,052.22 : x
  2. Step 2: Convert to fraction form
    677,838.78/935,497.35 = 376,052.22/x
  3. Step 3: Cross multiply
    677,838.78x = 935,497.35 × 376,052.22
  4. Step 4: Simplify right side
    677,838.78x = 351,795,855,271.62
  5. Step 5: Solve for x
    x = 351,795,855,271.62/677,838.78
  6. Step 6: Final answer
    x = 518,996.35

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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.