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Finding the Fourth Proportional to 492,672.68, 679,888.86 and 266,318

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Solution

The fourth proportional to 492,672.68, 679,888.86 and 266,318 is: 367,519.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,672.68 : 679,888.86 = 266,318 : x
  2. Step 2: Convert to fraction form
    492,672.68/679,888.86 = 266,318/x
  3. Step 3: Cross multiply
    492,672.68x = 679,888.86 × 266,318
  4. Step 4: Simplify right side
    492,672.68x = 181,066,641,417.48
  5. Step 5: Solve for x
    x = 181,066,641,417.48/492,672.68
  6. Step 6: Final answer
    x = 367,519.14

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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.