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Finding the Fourth Proportional to 576,648.72, 795,775.86 and 321,999.84

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Solution

The fourth proportional to 576,648.72, 795,775.86 and 321,999.84 is: 444,360.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,648.72 : 795,775.86 = 321,999.84 : x
  2. Step 2: Convert to fraction form
    576,648.72/795,775.86 = 321,999.84/x
  3. Step 3: Cross multiply
    576,648.72x = 795,775.86 × 321,999.84
  4. Step 4: Simplify right side
    576,648.72x = 256,239,699,595.86
  5. Step 5: Solve for x
    x = 256,239,699,595.86/576,648.72
  6. Step 6: Final answer
    x = 444,360.13

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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.