Home / 1,491,052.86-2,058,866.40-1,215,453.95

Finding the Fourth Proportional to 1,491,052.86, 2,058,866.40 and 1,215,453.95

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Solution

The fourth proportional to 1,491,052.86, 2,058,866.40 and 1,215,453.95 is: 1,678,315.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,052.86 : 2,058,866.40 = 1,215,453.95 : x
  2. Step 2: Convert to fraction form
    1,491,052.86/2,058,866.40 = 1,215,453.95/x
  3. Step 3: Cross multiply
    1,491,052.86x = 2,058,866.40 × 1,215,453.95
  4. Step 4: Simplify right side
    1,491,052.86x = 2,502,457,311,967.77
  5. Step 5: Solve for x
    x = 2,502,457,311,967.77/1,491,052.86
  6. Step 6: Final answer
    x = 1,678,315.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.