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Finding the Fourth Proportional to 403,008, 604,490.12 and 122,503.38

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Solution

The fourth proportional to 403,008, 604,490.12 and 122,503.38 is: 183,748.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,008 : 604,490.12 = 122,503.38 : x
  2. Step 2: Convert to fraction form
    403,008/604,490.12 = 122,503.38/x
  3. Step 3: Cross multiply
    403,008x = 604,490.12 × 122,503.38
  4. Step 4: Simplify right side
    403,008x = 74,052,082,876.61
  5. Step 5: Solve for x
    x = 74,052,082,876.61/403,008
  6. Step 6: Final answer
    x = 183,748.42

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Why These Related Problems?

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