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Finding the Fourth Proportional to 492,793.90, 680,056.55 and 266,439.40

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Solution

The fourth proportional to 492,793.90, 680,056.55 and 266,439.40 is: 367,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,793.90 : 680,056.55 = 266,439.40 : x
  2. Step 2: Convert to fraction form
    492,793.90/680,056.55 = 266,439.40/x
  3. Step 3: Cross multiply
    492,793.90x = 680,056.55 × 266,439.40
  4. Step 4: Simplify right side
    492,793.90x = 181,193,859,148.07
  5. Step 5: Solve for x
    x = 181,193,859,148.07/492,793.90
  6. Step 6: Final answer
    x = 367,686.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.