Home / 4,920,474.63-7,379,870.72-1,325,400.80

Finding the Fourth Proportional to 4,920,474.63, 7,379,870.72 and 1,325,400.80

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Solution

The fourth proportional to 4,920,474.63, 7,379,870.72 and 1,325,400.80 is: 1,987,874.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920,474.63 : 7,379,870.72 = 1,325,400.80 : x
  2. Step 2: Convert to fraction form
    4,920,474.63/7,379,870.72 = 1,325,400.80/x
  3. Step 3: Cross multiply
    4,920,474.63x = 7,379,870.72 × 1,325,400.80
  4. Step 4: Simplify right side
    4,920,474.63x = 9,781,286,556,184.58
  5. Step 5: Solve for x
    x = 9,781,286,556,184.58/4,920,474.63
  6. Step 6: Final answer
    x = 1,987,874.60

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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.