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Finding the Fourth Proportional to 492,656.60, 679,865.80 and 266,302.10

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Solution

The fourth proportional to 492,656.60, 679,865.80 and 266,302.10 is: 367,496.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,656.60 : 679,865.80 = 266,302.10 : x
  2. Step 2: Convert to fraction form
    492,656.60/679,865.80 = 266,302.10/x
  3. Step 3: Cross multiply
    492,656.60x = 679,865.80 × 266,302.10
  4. Step 4: Simplify right side
    492,656.60x = 181,049,686,858.85
  5. Step 5: Solve for x
    x = 181,049,686,858.85/492,656.60
  6. Step 6: Final answer
    x = 367,496.73

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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.