Home / 1,519,376.28-2,278,223.13-621,448.65

Finding the Fourth Proportional to 1,519,376.28, 2,278,223.13 and 621,448.65

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Solution

The fourth proportional to 1,519,376.28, 2,278,223.13 and 621,448.65 is: 931,828.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519,376.28 : 2,278,223.13 = 621,448.65 : x
  2. Step 2: Convert to fraction form
    1,519,376.28/2,278,223.13 = 621,448.65/x
  3. Step 3: Cross multiply
    1,519,376.28x = 2,278,223.13 × 621,448.65
  4. Step 4: Simplify right side
    1,519,376.28x = 1,415,798,688,537.27
  5. Step 5: Solve for x
    x = 1,415,798,688,537.27/1,519,376.28
  6. Step 6: Final answer
    x = 931,828.87

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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.