Home / 871,454.57-1,202,835.69-489,604.37

Finding the Fourth Proportional to 871,454.57, 1,202,835.69 and 489,604.37

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Solution

The fourth proportional to 871,454.57, 1,202,835.69 and 489,604.37 is: 675,782.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,454.57 : 1,202,835.69 = 489,604.37 : x
  2. Step 2: Convert to fraction form
    871,454.57/1,202,835.69 = 489,604.37/x
  3. Step 3: Cross multiply
    871,454.57x = 1,202,835.69 × 489,604.37
  4. Step 4: Simplify right side
    871,454.57x = 588,913,604,201.79
  5. Step 5: Solve for x
    x = 588,913,604,201.79/871,454.57
  6. Step 6: Final answer
    x = 675,782.34

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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.