Home / 1,993,665.40-2,988,456.90-981,230.20

Finding the Fourth Proportional to 1,993,665.40, 2,988,456.90 and 981,230.20

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Solution

The fourth proportional to 1,993,665.40, 2,988,456.90 and 981,230.20 is: 1,470,840.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,665.40 : 2,988,456.90 = 981,230.20 : x
  2. Step 2: Convert to fraction form
    1,993,665.40/2,988,456.90 = 981,230.20/x
  3. Step 3: Cross multiply
    1,993,665.40x = 2,988,456.90 × 981,230.20
  4. Step 4: Simplify right side
    1,993,665.40x = 2,932,364,161,678.38
  5. Step 5: Solve for x
    x = 2,932,364,161,678.38/1,993,665.40
  6. Step 6: Final answer
    x = 1,470,840.67

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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.