Home / 2,990,316.80-4,486,162.08-860,418.56

Finding the Fourth Proportional to 2,990,316.80, 4,486,162.08 and 860,418.56

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Solution

The fourth proportional to 2,990,316.80, 4,486,162.08 and 860,418.56 is: 1,290,825.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,316.80 : 4,486,162.08 = 860,418.56 : x
  2. Step 2: Convert to fraction form
    2,990,316.80/4,486,162.08 = 860,418.56/x
  3. Step 3: Cross multiply
    2,990,316.80x = 4,486,162.08 × 860,418.56
  4. Step 4: Simplify right side
    2,990,316.80x = 3,859,977,116,800.21
  5. Step 5: Solve for x
    x = 3,859,977,116,800.21/2,990,316.80
  6. Step 6: Final answer
    x = 1,290,825.48

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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.