Home / 1,383,313.80-2,074,970.70-910,921.80

Finding the Fourth Proportional to 1,383,313.80, 2,074,970.70 and 910,921.80

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Solution

The fourth proportional to 1,383,313.80, 2,074,970.70 and 910,921.80 is: 1,366,382.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,313.80 : 2,074,970.70 = 910,921.80 : x
  2. Step 2: Convert to fraction form
    1,383,313.80/2,074,970.70 = 910,921.80/x
  3. Step 3: Cross multiply
    1,383,313.80x = 2,074,970.70 × 910,921.80
  4. Step 4: Simplify right side
    1,383,313.80x = 1,890,136,044,991.26
  5. Step 5: Solve for x
    x = 1,890,136,044,991.26/1,383,313.80
  6. Step 6: Final answer
    x = 1,366,382.70

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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.