Home / 455,621.36-628,631.28-262,018.55

Finding the Fourth Proportional to 455,621.36, 628,631.28 and 262,018.55

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Solution

The fourth proportional to 455,621.36, 628,631.28 and 262,018.55 is: 361,513.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,621.36 : 628,631.28 = 262,018.55 : x
  2. Step 2: Convert to fraction form
    455,621.36/628,631.28 = 262,018.55/x
  3. Step 3: Cross multiply
    455,621.36x = 628,631.28 × 262,018.55
  4. Step 4: Simplify right side
    455,621.36x = 164,713,054,505.77
  5. Step 5: Solve for x
    x = 164,713,054,505.77/455,621.36
  6. Step 6: Final answer
    x = 361,513.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.