Home / 2,078,651.80-3,117,686.10-658,851.40

Finding the Fourth Proportional to 2,078,651.80, 3,117,686.10 and 658,851.40

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Solution

The fourth proportional to 2,078,651.80, 3,117,686.10 and 658,851.40 is: 988,184.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,651.80 : 3,117,686.10 = 658,851.40 : x
  2. Step 2: Convert to fraction form
    2,078,651.80/3,117,686.10 = 658,851.40/x
  3. Step 3: Cross multiply
    2,078,651.80x = 3,117,686.10 × 658,851.40
  4. Step 4: Simplify right side
    2,078,651.80x = 2,054,091,851,745.54
  5. Step 5: Solve for x
    x = 2,054,091,851,745.54/2,078,651.80
  6. Step 6: Final answer
    x = 988,184.67

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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.