Home / 629,708.58-869,021.33-357,822.63

Finding the Fourth Proportional to 629,708.58, 869,021.33 and 357,822.63

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Solution

The fourth proportional to 629,708.58, 869,021.33 and 357,822.63 is: 493,808.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,708.58 : 869,021.33 = 357,822.63 : x
  2. Step 2: Convert to fraction form
    629,708.58/869,021.33 = 357,822.63/x
  3. Step 3: Cross multiply
    629,708.58x = 869,021.33 × 357,822.63
  4. Step 4: Simplify right side
    629,708.58x = 310,955,496,037.59
  5. Step 5: Solve for x
    x = 310,955,496,037.59/629,708.58
  6. Step 6: Final answer
    x = 493,808.57

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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.