Home / 629,755.18-869,029.36-357,785.33

Finding the Fourth Proportional to 629,755.18, 869,029.36 and 357,785.33

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Solution

The fourth proportional to 629,755.18, 869,029.36 and 357,785.33 is: 493,725.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,755.18 : 869,029.36 = 357,785.33 : x
  2. Step 2: Convert to fraction form
    629,755.18/869,029.36 = 357,785.33/x
  3. Step 3: Cross multiply
    629,755.18x = 869,029.36 × 357,785.33
  4. Step 4: Simplify right side
    629,755.18x = 310,925,956,347.29
  5. Step 5: Solve for x
    x = 310,925,956,347.29/629,755.18
  6. Step 6: Final answer
    x = 493,725.13

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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.