Home / 1,239,198.78-1,855,187.67-920,762.01

Finding the Fourth Proportional to 1,239,198.78, 1,855,187.67 and 920,762.01

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Solution

The fourth proportional to 1,239,198.78, 1,855,187.67 and 920,762.01 is: 1,378,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,198.78 : 1,855,187.67 = 920,762.01 : x
  2. Step 2: Convert to fraction form
    1,239,198.78/1,855,187.67 = 920,762.01/x
  3. Step 3: Cross multiply
    1,239,198.78x = 1,855,187.67 × 920,762.01
  4. Step 4: Simplify right side
    1,239,198.78x = 1,708,186,327,956.42
  5. Step 5: Solve for x
    x = 1,708,186,327,956.42/1,239,198.78
  6. Step 6: Final answer
    x = 1,378,460.30

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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.