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Finding the Fourth Proportional to 602,309.25, 831,187.89 and 330,379.35

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Solution

The fourth proportional to 602,309.25, 831,187.89 and 330,379.35 is: 455,924.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,309.25 : 831,187.89 = 330,379.35 : x
  2. Step 2: Convert to fraction form
    602,309.25/831,187.89 = 330,379.35/x
  3. Step 3: Cross multiply
    602,309.25x = 831,187.89 × 330,379.35
  4. Step 4: Simplify right side
    602,309.25x = 274,607,314,826.07
  5. Step 5: Solve for x
    x = 274,607,314,826.07/602,309.25
  6. Step 6: Final answer
    x = 455,924.12

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Why These Related Problems?

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