Home / 627,375.84-865,681.20-372,720.48

Finding the Fourth Proportional to 627,375.84, 865,681.20 and 372,720.48

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Solution

The fourth proportional to 627,375.84, 865,681.20 and 372,720.48 is: 514,296.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,375.84 : 865,681.20 = 372,720.48 : x
  2. Step 2: Convert to fraction form
    627,375.84/865,681.20 = 372,720.48/x
  3. Step 3: Cross multiply
    627,375.84x = 865,681.20 × 372,720.48
  4. Step 4: Simplify right side
    627,375.84x = 322,657,112,390.98
  5. Step 5: Solve for x
    x = 322,657,112,390.98/627,375.84
  6. Step 6: Final answer
    x = 514,296.36

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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.