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Finding the Fourth Proportional to 601,390.63, 829,604.40 and 371,874.55

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Solution

The fourth proportional to 601,390.63, 829,604.40 and 371,874.55 is: 512,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,390.63 : 829,604.40 = 371,874.55 : x
  2. Step 2: Convert to fraction form
    601,390.63/829,604.40 = 371,874.55/x
  3. Step 3: Cross multiply
    601,390.63x = 829,604.40 × 371,874.55
  4. Step 4: Simplify right side
    601,390.63x = 308,508,762,928.02
  5. Step 5: Solve for x
    x = 308,508,762,928.02/601,390.63
  6. Step 6: Final answer
    x = 512,992.30

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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.