Home / 3,119,299.40-4,678,074.30-990,036.20

Finding the Fourth Proportional to 3,119,299.40, 4,678,074.30 and 990,036.20

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Solution

The fourth proportional to 3,119,299.40, 4,678,074.30 and 990,036.20 is: 1,484,776.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,299.40 : 4,678,074.30 = 990,036.20 : x
  2. Step 2: Convert to fraction form
    3,119,299.40/4,678,074.30 = 990,036.20/x
  3. Step 3: Cross multiply
    3,119,299.40x = 4,678,074.30 × 990,036.20
  4. Step 4: Simplify right side
    3,119,299.40x = 4,631,462,903,289.66
  5. Step 5: Solve for x
    x = 4,631,462,903,289.66/3,119,299.40
  6. Step 6: Final answer
    x = 1,484,776.65

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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.