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Finding the Fourth Proportional to 418,392, 627,588 and 122,904

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Solution

The fourth proportional to 418,392, 627,588 and 122,904 is: 184,356

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,392 : 627,588 = 122,904 : x
  2. Step 2: Convert to fraction form
    418,392/627,588 = 122,904/x
  3. Step 3: Cross multiply
    418,392x = 627,588 × 122,904
  4. Step 4: Simplify right side
    418,392x = 77,133,075,552
  5. Step 5: Solve for x
    x = 77,133,075,552/418,392
  6. Step 6: Final answer
    x = 184,356

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.