Home / 1,475,457.66-2,211,993.09-621,978.21

Finding the Fourth Proportional to 1,475,457.66, 2,211,993.09 and 621,978.21

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Solution

The fourth proportional to 1,475,457.66, 2,211,993.09 and 621,978.21 is: 932,464.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475,457.66 : 2,211,993.09 = 621,978.21 : x
  2. Step 2: Convert to fraction form
    1,475,457.66/2,211,993.09 = 621,978.21/x
  3. Step 3: Cross multiply
    1,475,457.66x = 2,211,993.09 × 621,978.21
  4. Step 4: Simplify right side
    1,475,457.66x = 1,375,811,502,650.57
  5. Step 5: Solve for x
    x = 1,375,811,502,650.57/1,475,457.66
  6. Step 6: Final answer
    x = 932,464.24

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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.