Home / 2,927,431.57-4,391,369.48-905,879.86

Finding the Fourth Proportional to 2,927,431.57, 4,391,369.48 and 905,879.86

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Solution

The fourth proportional to 2,927,431.57, 4,391,369.48 and 905,879.86 is: 1,358,888.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927,431.57 : 4,391,369.48 = 905,879.86 : x
  2. Step 2: Convert to fraction form
    2,927,431.57/4,391,369.48 = 905,879.86/x
  3. Step 3: Cross multiply
    2,927,431.57x = 4,391,369.48 × 905,879.86
  4. Step 4: Simplify right side
    2,927,431.57x = 3,978,053,169,750.67
  5. Step 5: Solve for x
    x = 3,978,053,169,750.67/2,927,431.57
  6. Step 6: Final answer
    x = 1,358,888.53

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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.