Home / 3,119,072.40-4,678,754.40-989,323.20

Finding the Fourth Proportional to 3,119,072.40, 4,678,754.40 and 989,323.20

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Solution

The fourth proportional to 3,119,072.40, 4,678,754.40 and 989,323.20 is: 1,484,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,072.40 : 4,678,754.40 = 989,323.20 : x
  2. Step 2: Convert to fraction form
    3,119,072.40/4,678,754.40 = 989,323.20/x
  3. Step 3: Cross multiply
    3,119,072.40x = 4,678,754.40 × 989,323.20
  4. Step 4: Simplify right side
    3,119,072.40x = 4,628,800,275,022.08
  5. Step 5: Solve for x
    x = 4,628,800,275,022.08/3,119,072.40
  6. Step 6: Final answer
    x = 1,484,031.05

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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.