Home / 1,426,943.72-2,140,636.72-480,240.56

Finding the Fourth Proportional to 1,426,943.72, 2,140,636.72 and 480,240.56

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Solution

The fourth proportional to 1,426,943.72, 2,140,636.72 and 480,240.56 is: 720,435.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,943.72 : 2,140,636.72 = 480,240.56 : x
  2. Step 2: Convert to fraction form
    1,426,943.72/2,140,636.72 = 480,240.56/x
  3. Step 3: Cross multiply
    1,426,943.72x = 2,140,636.72 × 480,240.56
  4. Step 4: Simplify right side
    1,426,943.72x = 1,028,020,577,169.36
  5. Step 5: Solve for x
    x = 1,028,020,577,169.36/1,426,943.72
  6. Step 6: Final answer
    x = 720,435.27

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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.