Home / 455,789.29-629,018.84-251,840.23

Finding the Fourth Proportional to 455,789.29, 629,018.84 and 251,840.23

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Solution

The fourth proportional to 455,789.29, 629,018.84 and 251,840.23 is: 347,555.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,789.29 : 629,018.84 = 251,840.23 : x
  2. Step 2: Convert to fraction form
    455,789.29/629,018.84 = 251,840.23/x
  3. Step 3: Cross multiply
    455,789.29x = 629,018.84 × 251,840.23
  4. Step 4: Simplify right side
    455,789.29x = 158,412,249,339.93
  5. Step 5: Solve for x
    x = 158,412,249,339.93/455,789.29
  6. Step 6: Final answer
    x = 347,555.89

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1.5x scale

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.