Home / 883,620.48-1,219,338.26-521,026.80

Finding the Fourth Proportional to 883,620.48, 1,219,338.26 and 521,026.80

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Solution

The fourth proportional to 883,620.48, 1,219,338.26 and 521,026.80 is: 718,982.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,620.48 : 1,219,338.26 = 521,026.80 : x
  2. Step 2: Convert to fraction form
    883,620.48/1,219,338.26 = 521,026.80/x
  3. Step 3: Cross multiply
    883,620.48x = 1,219,338.26 × 521,026.80
  4. Step 4: Simplify right side
    883,620.48x = 635,307,911,725.37
  5. Step 5: Solve for x
    x = 635,307,911,725.37/883,620.48
  6. Step 6: Final answer
    x = 718,982.78

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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.