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Finding the Fourth Proportional to 492,671.68, 679,887.48 and 266,317

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Solution

The fourth proportional to 492,671.68, 679,887.48 and 266,317 is: 367,517.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,671.68 : 679,887.48 = 266,317 : x
  2. Step 2: Convert to fraction form
    492,671.68/679,887.48 = 266,317/x
  3. Step 3: Cross multiply
    492,671.68x = 679,887.48 × 266,317
  4. Step 4: Simplify right side
    492,671.68x = 181,065,594,011.16
  5. Step 5: Solve for x
    x = 181,065,594,011.16/492,671.68
  6. Step 6: Final answer
    x = 367,517.76

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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.