Home / 1,222,984.74-1,687,662.23-679,155.20

Finding the Fourth Proportional to 1,222,984.74, 1,687,662.23 and 679,155.20

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Solution

The fourth proportional to 1,222,984.74, 1,687,662.23 and 679,155.20 is: 937,202.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,984.74 : 1,687,662.23 = 679,155.20 : x
  2. Step 2: Convert to fraction form
    1,222,984.74/1,687,662.23 = 679,155.20/x
  3. Step 3: Cross multiply
    1,222,984.74x = 1,687,662.23 × 679,155.20
  4. Step 4: Simplify right side
    1,222,984.74x = 1,146,184,567,514.01
  5. Step 5: Solve for x
    x = 1,146,184,567,514.01/1,222,984.74
  6. Step 6: Final answer
    x = 937,202.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.