Home / 454,628.66-681,918.18-139,085.60

Finding the Fourth Proportional to 454,628.66, 681,918.18 and 139,085.60

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Solution

The fourth proportional to 454,628.66, 681,918.18 and 139,085.60 is: 208,620.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,628.66 : 681,918.18 = 139,085.60 : x
  2. Step 2: Convert to fraction form
    454,628.66/681,918.18 = 139,085.60/x
  3. Step 3: Cross multiply
    454,628.66x = 681,918.18 × 139,085.60
  4. Step 4: Simplify right side
    454,628.66x = 94,844,999,216.21
  5. Step 5: Solve for x
    x = 94,844,999,216.21/454,628.66
  6. Step 6: Final answer
    x = 208,620.81

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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.