Home / 1,389,013.80-2,080,410.30-829,141.80

Finding the Fourth Proportional to 1,389,013.80, 2,080,410.30 and 829,141.80

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Solution

The fourth proportional to 1,389,013.80, 2,080,410.30 and 829,141.80 is: 1,241,856.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,013.80 : 2,080,410.30 = 829,141.80 : x
  2. Step 2: Convert to fraction form
    1,389,013.80/2,080,410.30 = 829,141.80/x
  3. Step 3: Cross multiply
    1,389,013.80x = 2,080,410.30 × 829,141.80
  4. Step 4: Simplify right side
    1,389,013.80x = 1,724,955,140,880.54
  5. Step 5: Solve for x
    x = 1,724,955,140,880.54/1,389,013.80
  6. Step 6: Final answer
    x = 1,241,856.01

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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.