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Finding the Fourth Proportional to 602,375.84, 831,286.40 and 330,426.08

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Solution

The fourth proportional to 602,375.84, 831,286.40 and 330,426.08 is: 455,992.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,375.84 : 831,286.40 = 330,426.08 : x
  2. Step 2: Convert to fraction form
    602,375.84/831,286.40 = 330,426.08/x
  3. Step 3: Cross multiply
    602,375.84x = 831,286.40 × 330,426.08
  4. Step 4: Simplify right side
    602,375.84x = 274,678,706,509.31
  5. Step 5: Solve for x
    x = 274,678,706,509.31/602,375.84
  6. Step 6: Final answer
    x = 455,992.24

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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.