Home / 860,521.78-1,290,200.30-481,704.06

Finding the Fourth Proportional to 860,521.78, 1,290,200.30 and 481,704.06

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Solution

The fourth proportional to 860,521.78, 1,290,200.30 and 481,704.06 is: 722,230.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,521.78 : 1,290,200.30 = 481,704.06 : x
  2. Step 2: Convert to fraction form
    860,521.78/1,290,200.30 = 481,704.06/x
  3. Step 3: Cross multiply
    860,521.78x = 1,290,200.30 × 481,704.06
  4. Step 4: Simplify right side
    860,521.78x = 621,494,726,959.34
  5. Step 5: Solve for x
    x = 621,494,726,959.34/860,521.78
  6. Step 6: Final answer
    x = 722,230.10

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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.