Home / 3,120,506.37-4,680,281.48-990,314.37

Finding the Fourth Proportional to 3,120,506.37, 4,680,281.48 and 990,314.37

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Solution

The fourth proportional to 3,120,506.37, 4,680,281.48 and 990,314.37 is: 1,485,319.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,506.37 : 4,680,281.48 = 990,314.37 : x
  2. Step 2: Convert to fraction form
    3,120,506.37/4,680,281.48 = 990,314.37/x
  3. Step 3: Cross multiply
    3,120,506.37x = 4,680,281.48 × 990,314.37
  4. Step 4: Simplify right side
    3,120,506.37x = 4,634,950,000,337.30
  5. Step 5: Solve for x
    x = 4,634,950,000,337.30/3,120,506.37
  6. Step 6: Final answer
    x = 1,485,319.83

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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.