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Finding the Fourth Proportional to 403,885.59, 605,937.47 and 123,395.19

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Solution

The fourth proportional to 403,885.59, 605,937.47 and 123,395.19 is: 185,126.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,885.59 : 605,937.47 = 123,395.19 : x
  2. Step 2: Convert to fraction form
    403,885.59/605,937.47 = 123,395.19/x
  3. Step 3: Cross multiply
    403,885.59x = 605,937.47 × 123,395.19
  4. Step 4: Simplify right side
    403,885.59x = 74,769,769,238.77
  5. Step 5: Solve for x
    x = 74,769,769,238.77/403,885.59
  6. Step 6: Final answer
    x = 185,126.11

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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.