Home / 547,956.20-821,351.10-210,866.60

Finding the Fourth Proportional to 547,956.20, 821,351.10 and 210,866.60

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Solution

The fourth proportional to 547,956.20, 821,351.10 and 210,866.60 is: 316,075.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,956.20 : 821,351.10 = 210,866.60 : x
  2. Step 2: Convert to fraction form
    547,956.20/821,351.10 = 210,866.60/x
  3. Step 3: Cross multiply
    547,956.20x = 821,351.10 × 210,866.60
  4. Step 4: Simplify right side
    547,956.20x = 173,195,513,863.26
  5. Step 5: Solve for x
    x = 173,195,513,863.26/547,956.20
  6. Step 6: Final answer
    x = 316,075.47

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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.