Home / 689,877.06-952,020.80-383,953.34

Finding the Fourth Proportional to 689,877.06, 952,020.80 and 383,953.34

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Solution

The fourth proportional to 689,877.06, 952,020.80 and 383,953.34 is: 529,850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,877.06 : 952,020.80 = 383,953.34 : x
  2. Step 2: Convert to fraction form
    689,877.06/952,020.80 = 383,953.34/x
  3. Step 3: Cross multiply
    689,877.06x = 952,020.80 × 383,953.34
  4. Step 4: Simplify right side
    689,877.06x = 365,531,565,909.47
  5. Step 5: Solve for x
    x = 365,531,565,909.47/689,877.06
  6. Step 6: Final answer
    x = 529,850.30

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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.