Home / 1,188,939.38-1,783,034.44-390,034.76

Finding the Fourth Proportional to 1,188,939.38, 1,783,034.44 and 390,034.76

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Solution

The fourth proportional to 1,188,939.38, 1,783,034.44 and 390,034.76 is: 584,929.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,939.38 : 1,783,034.44 = 390,034.76 : x
  2. Step 2: Convert to fraction form
    1,188,939.38/1,783,034.44 = 390,034.76/x
  3. Step 3: Cross multiply
    1,188,939.38x = 1,783,034.44 × 390,034.76
  4. Step 4: Simplify right side
    1,188,939.38x = 695,445,399,986.88
  5. Step 5: Solve for x
    x = 695,445,399,986.88/1,188,939.38
  6. Step 6: Final answer
    x = 584,929.24

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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.