Home / 403,399.20-605,098.80-122,916.45

Finding the Fourth Proportional to 403,399.20, 605,098.80 and 122,916.45

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Solution

The fourth proportional to 403,399.20, 605,098.80 and 122,916.45 is: 184,374.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,399.20 : 605,098.80 = 122,916.45 : x
  2. Step 2: Convert to fraction form
    403,399.20/605,098.80 = 122,916.45/x
  3. Step 3: Cross multiply
    403,399.20x = 605,098.80 × 122,916.45
  4. Step 4: Simplify right side
    403,399.20x = 74,376,596,395.26
  5. Step 5: Solve for x
    x = 74,376,596,395.26/403,399.20
  6. Step 6: Final answer
    x = 184,374.68

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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.