Home / 3,120,508.62-4,680,284.85-990,316.62

Finding the Fourth Proportional to 3,120,508.62, 4,680,284.85 and 990,316.62

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Solution

The fourth proportional to 3,120,508.62, 4,680,284.85 and 990,316.62 is: 1,485,323.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,508.62 : 4,680,284.85 = 990,316.62 : x
  2. Step 2: Convert to fraction form
    3,120,508.62/4,680,284.85 = 990,316.62/x
  3. Step 3: Cross multiply
    3,120,508.62x = 4,680,284.85 × 990,316.62
  4. Step 4: Simplify right side
    3,120,508.62x = 4,634,963,873,289.21
  5. Step 5: Solve for x
    x = 4,634,963,873,289.21/3,120,508.62
  6. Step 6: Final answer
    x = 1,485,323.21

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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.