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Finding the Fourth Proportional to 627,263.84, 865,607.25 and 369,155.98

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Solution

The fourth proportional to 627,263.84, 865,607.25 and 369,155.98 is: 509,425.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,263.84 : 865,607.25 = 369,155.98 : x
  2. Step 2: Convert to fraction form
    627,263.84/865,607.25 = 369,155.98/x
  3. Step 3: Cross multiply
    627,263.84x = 865,607.25 × 369,155.98
  4. Step 4: Simplify right side
    627,263.84x = 319,544,091,889.17
  5. Step 5: Solve for x
    x = 319,544,091,889.17/627,263.84
  6. Step 6: Final answer
    x = 509,425.33

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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.