Home / 871,069.98-1,202,045.49-489,112.86

Finding the Fourth Proportional to 871,069.98, 1,202,045.49 and 489,112.86

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Solution

The fourth proportional to 871,069.98, 1,202,045.49 and 489,112.86 is: 674,958.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,069.98 : 1,202,045.49 = 489,112.86 : x
  2. Step 2: Convert to fraction form
    871,069.98/1,202,045.49 = 489,112.86/x
  3. Step 3: Cross multiply
    871,069.98x = 1,202,045.49 × 489,112.86
  4. Step 4: Simplify right side
    871,069.98x = 587,935,907,464.00
  5. Step 5: Solve for x
    x = 587,935,907,464.00/871,069.98
  6. Step 6: Final answer
    x = 674,958.29

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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.