Home / 1,421,072.68-2,127,789.29-1,082,500.48

Finding the Fourth Proportional to 1,421,072.68, 2,127,789.29 and 1,082,500.48

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Solution

The fourth proportional to 1,421,072.68, 2,127,789.29 and 1,082,500.48 is: 1,620,841.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,072.68 : 2,127,789.29 = 1,082,500.48 : x
  2. Step 2: Convert to fraction form
    1,421,072.68/2,127,789.29 = 1,082,500.48/x
  3. Step 3: Cross multiply
    1,421,072.68x = 2,127,789.29 × 1,082,500.48
  4. Step 4: Simplify right side
    1,421,072.68x = 2,303,332,927,763.86
  5. Step 5: Solve for x
    x = 2,303,332,927,763.86/1,421,072.68
  6. Step 6: Final answer
    x = 1,620,841.05

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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.