Home / 786,369.75-1,179,254.93-280,836.33

Finding the Fourth Proportional to 786,369.75, 1,179,254.93 and 280,836.33

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Solution

The fourth proportional to 786,369.75, 1,179,254.93 and 280,836.33 is: 421,147.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,369.75 : 1,179,254.93 = 280,836.33 : x
  2. Step 2: Convert to fraction form
    786,369.75/1,179,254.93 = 280,836.33/x
  3. Step 3: Cross multiply
    786,369.75x = 1,179,254.93 × 280,836.33
  4. Step 4: Simplify right side
    786,369.75x = 331,177,625,271.43
  5. Step 5: Solve for x
    x = 331,177,625,271.43/786,369.75
  6. Step 6: Final answer
    x = 421,147.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.