Home / 547,210.40-820,738.80-173,271.20

Finding the Fourth Proportional to 547,210.40, 820,738.80 and 173,271.20

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Solution

The fourth proportional to 547,210.40, 820,738.80 and 173,271.20 is: 259,882.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,210.40 : 820,738.80 = 173,271.20 : x
  2. Step 2: Convert to fraction form
    547,210.40/820,738.80 = 173,271.20/x
  3. Step 3: Cross multiply
    547,210.40x = 820,738.80 × 173,271.20
  4. Step 4: Simplify right side
    547,210.40x = 142,210,396,762.56
  5. Step 5: Solve for x
    x = 142,210,396,762.56/547,210.40
  6. Step 6: Final answer
    x = 259,882.48

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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.