Home / 1,238,015.38-1,856,979.24-339,442.70

Finding the Fourth Proportional to 1,238,015.38, 1,856,979.24 and 339,442.70

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Solution

The fourth proportional to 1,238,015.38, 1,856,979.24 and 339,442.70 is: 509,152.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,015.38 : 1,856,979.24 = 339,442.70 : x
  2. Step 2: Convert to fraction form
    1,238,015.38/1,856,979.24 = 339,442.70/x
  3. Step 3: Cross multiply
    1,238,015.38x = 1,856,979.24 × 339,442.70
  4. Step 4: Simplify right side
    1,238,015.38x = 630,338,047,069.55
  5. Step 5: Solve for x
    x = 630,338,047,069.55/1,238,015.38
  6. Step 6: Final answer
    x = 509,152.03

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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.