Home / 1,239,247.38-1,858,450.05-429,442.86

Finding the Fourth Proportional to 1,239,247.38, 1,858,450.05 and 429,442.86

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Solution

The fourth proportional to 1,239,247.38, 1,858,450.05 and 429,442.86 is: 644,018.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,247.38 : 1,858,450.05 = 429,442.86 : x
  2. Step 2: Convert to fraction form
    1,239,247.38/1,858,450.05 = 429,442.86/x
  3. Step 3: Cross multiply
    1,239,247.38x = 1,858,450.05 × 429,442.86
  4. Step 4: Simplify right side
    1,239,247.38x = 798,098,104,639.14
  5. Step 5: Solve for x
    x = 798,098,104,639.14/1,239,247.38
  6. Step 6: Final answer
    x = 644,018.39

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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.