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Finding the Fourth Proportional to 462,628.44, 638,343.90 and 258,683.40

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Solution

The fourth proportional to 462,628.44, 638,343.90 and 258,683.40 is: 356,936.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,628.44 : 638,343.90 = 258,683.40 : x
  2. Step 2: Convert to fraction form
    462,628.44/638,343.90 = 258,683.40/x
  3. Step 3: Cross multiply
    462,628.44x = 638,343.90 × 258,683.40
  4. Step 4: Simplify right side
    462,628.44x = 165,128,970,421.26
  5. Step 5: Solve for x
    x = 165,128,970,421.26/462,628.44
  6. Step 6: Final answer
    x = 356,936.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.