Home / 2,678,939.34-4,018,442.22-785,719.86

Finding the Fourth Proportional to 2,678,939.34, 4,018,442.22 and 785,719.86

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Solution

The fourth proportional to 2,678,939.34, 4,018,442.22 and 785,719.86 is: 1,178,589.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678,939.34 : 4,018,442.22 = 785,719.86 : x
  2. Step 2: Convert to fraction form
    2,678,939.34/4,018,442.22 = 785,719.86/x
  3. Step 3: Cross multiply
    2,678,939.34x = 4,018,442.22 × 785,719.86
  4. Step 4: Simplify right side
    2,678,939.34x = 3,157,369,858,516.49
  5. Step 5: Solve for x
    x = 3,157,369,858,516.49/2,678,939.34
  6. Step 6: Final answer
    x = 1,178,589.53

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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.