Home / 1,405,205.66-2,108,143.77-458,578.06

Finding the Fourth Proportional to 1,405,205.66, 2,108,143.77 and 458,578.06

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Solution

The fourth proportional to 1,405,205.66, 2,108,143.77 and 458,578.06 is: 687,976.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,205.66 : 2,108,143.77 = 458,578.06 : x
  2. Step 2: Convert to fraction form
    1,405,205.66/2,108,143.77 = 458,578.06/x
  3. Step 3: Cross multiply
    1,405,205.66x = 2,108,143.77 × 458,578.06
  4. Step 4: Simplify right side
    1,405,205.66x = 966,748,480,247.69
  5. Step 5: Solve for x
    x = 966,748,480,247.69/1,405,205.66
  6. Step 6: Final answer
    x = 687,976.51

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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.