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Finding the Fourth Proportional to 492,594.89, 679,780.59 and 266,240.39

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Solution

The fourth proportional to 492,594.89, 679,780.59 and 266,240.39 is: 367,411.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,594.89 : 679,780.59 = 266,240.39 : x
  2. Step 2: Convert to fraction form
    492,594.89/679,780.59 = 266,240.39/x
  3. Step 3: Cross multiply
    492,594.89x = 679,780.59 × 266,240.39
  4. Step 4: Simplify right side
    492,594.89x = 180,985,049,396.03
  5. Step 5: Solve for x
    x = 180,985,049,396.03/492,594.89
  6. Step 6: Final answer
    x = 367,411.54

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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.