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Finding the Fourth Proportional to 627,303.88, 865,696.98 and 369,199

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Solution

The fourth proportional to 627,303.88, 865,696.98 and 369,199 is: 509,504.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,303.88 : 865,696.98 = 369,199 : x
  2. Step 2: Convert to fraction form
    627,303.88/865,696.98 = 369,199/x
  3. Step 3: Cross multiply
    627,303.88x = 865,696.98 × 369,199
  4. Step 4: Simplify right side
    627,303.88x = 319,614,459,319.02
  5. Step 5: Solve for x
    x = 319,614,459,319.02/627,303.88
  6. Step 6: Final answer
    x = 509,504.99

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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.