Home / 1,313,828.40-1,970,130.06-682,572.72

Finding the Fourth Proportional to 1,313,828.40, 1,970,130.06 and 682,572.72

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Solution

The fourth proportional to 1,313,828.40, 1,970,130.06 and 682,572.72 is: 1,023,540.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,828.40 : 1,970,130.06 = 682,572.72 : x
  2. Step 2: Convert to fraction form
    1,313,828.40/1,970,130.06 = 682,572.72/x
  3. Step 3: Cross multiply
    1,313,828.40x = 1,970,130.06 × 682,572.72
  4. Step 4: Simplify right side
    1,313,828.40x = 1,344,757,033,807.96
  5. Step 5: Solve for x
    x = 1,344,757,033,807.96/1,313,828.40
  6. Step 6: Final answer
    x = 1,023,540.85

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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.