Home / 1,555,381.80-2,333,072.70-1,289,661.30

Finding the Fourth Proportional to 1,555,381.80, 2,333,072.70 and 1,289,661.30

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Solution

The fourth proportional to 1,555,381.80, 2,333,072.70 and 1,289,661.30 is: 1,934,491.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,381.80 : 2,333,072.70 = 1,289,661.30 : x
  2. Step 2: Convert to fraction form
    1,555,381.80/2,333,072.70 = 1,289,661.30/x
  3. Step 3: Cross multiply
    1,555,381.80x = 2,333,072.70 × 1,289,661.30
  4. Step 4: Simplify right side
    1,555,381.80x = 3,008,873,571,276.51
  5. Step 5: Solve for x
    x = 3,008,873,571,276.51/1,555,381.80
  6. Step 6: Final answer
    x = 1,934,491.95

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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.