Home / 647,821.20-971,440.20-248,329.20

Finding the Fourth Proportional to 647,821.20, 971,440.20 and 248,329.20

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Solution

The fourth proportional to 647,821.20, 971,440.20 and 248,329.20 is: 372,382.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,821.20 : 971,440.20 = 248,329.20 : x
  2. Step 2: Convert to fraction form
    647,821.20/971,440.20 = 248,329.20/x
  3. Step 3: Cross multiply
    647,821.20x = 971,440.20 × 248,329.20
  4. Step 4: Simplify right side
    647,821.20x = 241,236,967,713.84
  5. Step 5: Solve for x
    x = 241,236,967,713.84/647,821.20
  6. Step 6: Final answer
    x = 372,382.02

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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.