Home / 455,830.38-628,944.89-262,226.21

Finding the Fourth Proportional to 455,830.38, 628,944.89 and 262,226.21

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Solution

The fourth proportional to 455,830.38, 628,944.89 and 262,226.21 is: 361,814.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,830.38 : 628,944.89 = 262,226.21 : x
  2. Step 2: Convert to fraction form
    455,830.38/628,944.89 = 262,226.21/x
  3. Step 3: Cross multiply
    455,830.38x = 628,944.89 × 262,226.21
  4. Step 4: Simplify right side
    455,830.38x = 164,925,830,347.71
  5. Step 5: Solve for x
    x = 164,925,830,347.71/455,830.38
  6. Step 6: Final answer
    x = 361,814.04

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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.