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Finding the Fourth Proportional to 602,678.63, 831,710.23 and 330,763.91

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Solution

The fourth proportional to 602,678.63, 831,710.23 and 330,763.91 is: 456,461.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,678.63 : 831,710.23 = 330,763.91 : x
  2. Step 2: Convert to fraction form
    602,678.63/831,710.23 = 330,763.91/x
  3. Step 3: Cross multiply
    602,678.63x = 831,710.23 × 330,763.91
  4. Step 4: Simplify right side
    602,678.63x = 275,099,722,676.34
  5. Step 5: Solve for x
    x = 275,099,722,676.34/602,678.63
  6. Step 6: Final answer
    x = 456,461.72

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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.