Home / 1,119,939.32-1,679,915.67-278,491.07

Finding the Fourth Proportional to 1,119,939.32, 1,679,915.67 and 278,491.07

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Solution

The fourth proportional to 1,119,939.32, 1,679,915.67 and 278,491.07 is: 417,738.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,939.32 : 1,679,915.67 = 278,491.07 : x
  2. Step 2: Convert to fraction form
    1,119,939.32/1,679,915.67 = 278,491.07/x
  3. Step 3: Cross multiply
    1,119,939.32x = 1,679,915.67 × 278,491.07
  4. Step 4: Simplify right side
    1,119,939.32x = 467,841,515,603.52
  5. Step 5: Solve for x
    x = 467,841,515,603.52/1,119,939.32
  6. Step 6: Final answer
    x = 417,738.27

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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.