Home / 1,378,021.80-1,901,571.30-757,870.65

Finding the Fourth Proportional to 1,378,021.80, 1,901,571.30 and 757,870.65

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Solution

The fourth proportional to 1,378,021.80, 1,901,571.30 and 757,870.65 is: 1,045,807.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,021.80 : 1,901,571.30 = 757,870.65 : x
  2. Step 2: Convert to fraction form
    1,378,021.80/1,901,571.30 = 757,870.65/x
  3. Step 3: Cross multiply
    1,378,021.80x = 1,901,571.30 × 757,870.65
  4. Step 4: Simplify right side
    1,378,021.80x = 1,441,145,077,152.35
  5. Step 5: Solve for x
    x = 1,441,145,077,152.35/1,378,021.80
  6. Step 6: Final answer
    x = 1,045,807.17

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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.