Home / 1,209,889.81-1,814,834.77-451,790.47

Finding the Fourth Proportional to 1,209,889.81, 1,814,834.77 and 451,790.47

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Solution

The fourth proportional to 1,209,889.81, 1,814,834.77 and 451,790.47 is: 677,685.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,889.81 : 1,814,834.77 = 451,790.47 : x
  2. Step 2: Convert to fraction form
    1,209,889.81/1,814,834.77 = 451,790.47/x
  3. Step 3: Cross multiply
    1,209,889.81x = 1,814,834.77 × 451,790.47
  4. Step 4: Simplify right side
    1,209,889.81x = 819,925,051,451.69
  5. Step 5: Solve for x
    x = 819,925,051,451.69/1,209,889.81
  6. Step 6: Final answer
    x = 677,685.72

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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.