Home / 1,120,367.80-1,678,704.90-646,226.20

Finding the Fourth Proportional to 1,120,367.80, 1,678,704.90 and 646,226.20

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Solution

The fourth proportional to 1,120,367.80, 1,678,704.90 and 646,226.20 is: 968,274.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,367.80 : 1,678,704.90 = 646,226.20 : x
  2. Step 2: Convert to fraction form
    1,120,367.80/1,678,704.90 = 646,226.20/x
  3. Step 3: Cross multiply
    1,120,367.80x = 1,678,704.90 × 646,226.20
  4. Step 4: Simplify right side
    1,120,367.80x = 1,084,823,088,448.38
  5. Step 5: Solve for x
    x = 1,084,823,088,448.38/1,120,367.80
  6. Step 6: Final answer
    x = 968,274.07

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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.