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Finding the Fourth Proportional to 492,205.09, 679,243.49 and 265,850.59

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Solution

The fourth proportional to 492,205.09, 679,243.49 and 265,850.59 is: 366,874.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,205.09 : 679,243.49 = 265,850.59 : x
  2. Step 2: Convert to fraction form
    492,205.09/679,243.49 = 265,850.59/x
  3. Step 3: Cross multiply
    492,205.09x = 679,243.49 × 265,850.59
  4. Step 4: Simplify right side
    492,205.09x = 180,577,282,570.16
  5. Step 5: Solve for x
    x = 180,577,282,570.16/492,205.09
  6. Step 6: Final answer
    x = 366,874.07

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1.5x scale

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.