Home / 1,855,020.80-2,780,911.20-718,558.40

Finding the Fourth Proportional to 1,855,020.80, 2,780,911.20 and 718,558.40

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Solution

The fourth proportional to 1,855,020.80, 2,780,911.20 and 718,558.40 is: 1,077,210.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855,020.80 : 2,780,911.20 = 718,558.40 : x
  2. Step 2: Convert to fraction form
    1,855,020.80/2,780,911.20 = 718,558.40/x
  3. Step 3: Cross multiply
    1,855,020.80x = 2,780,911.20 × 718,558.40
  4. Step 4: Simplify right side
    1,855,020.80x = 1,998,247,102,414.08
  5. Step 5: Solve for x
    x = 1,998,247,102,414.08/1,855,020.80
  6. Step 6: Final answer
    x = 1,077,210.08

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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.