Home / 686,003.88-1,029,356.82-326,580.96

Finding the Fourth Proportional to 686,003.88, 1,029,356.82 and 326,580.96

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Solution

The fourth proportional to 686,003.88, 1,029,356.82 and 326,580.96 is: 490,038.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,003.88 : 1,029,356.82 = 326,580.96 : x
  2. Step 2: Convert to fraction form
    686,003.88/1,029,356.82 = 326,580.96/x
  3. Step 3: Cross multiply
    686,003.88x = 1,029,356.82 × 326,580.96
  4. Step 4: Simplify right side
    686,003.88x = 336,168,338,458.15
  5. Step 5: Solve for x
    x = 336,168,338,458.15/686,003.88
  6. Step 6: Final answer
    x = 490,038.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.