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Finding the Fourth Proportional to 525,390.44, 725,056.59 and 310,714.52

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Solution

The fourth proportional to 525,390.44, 725,056.59 and 310,714.52 is: 428,796.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,390.44 : 725,056.59 = 310,714.52 : x
  2. Step 2: Convert to fraction form
    525,390.44/725,056.59 = 310,714.52/x
  3. Step 3: Cross multiply
    525,390.44x = 725,056.59 × 310,714.52
  4. Step 4: Simplify right side
    525,390.44x = 225,285,606,709.40
  5. Step 5: Solve for x
    x = 225,285,606,709.40/525,390.44
  6. Step 6: Final answer
    x = 428,796.55

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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.