Home / 3,119,669.10-4,679,491.36-989,919.30

Finding the Fourth Proportional to 3,119,669.10, 4,679,491.36 and 989,919.30

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Solution

The fourth proportional to 3,119,669.10, 4,679,491.36 and 989,919.30 is: 1,484,875.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,669.10 : 4,679,491.36 = 989,919.30 : x
  2. Step 2: Convert to fraction form
    3,119,669.10/4,679,491.36 = 989,919.30/x
  3. Step 3: Cross multiply
    3,119,669.10x = 4,679,491.36 × 989,919.30
  4. Step 4: Simplify right side
    3,119,669.10x = 4,632,318,811,447.25
  5. Step 5: Solve for x
    x = 4,632,318,811,447.25/3,119,669.10
  6. Step 6: Final answer
    x = 1,484,875.05

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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.