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Finding the Fourth Proportional to 525,985.56, 725,682.78 and 299,470.68

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Solution

The fourth proportional to 525,985.56, 725,682.78 and 299,470.68 is: 413,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,985.56 : 725,682.78 = 299,470.68 : x
  2. Step 2: Convert to fraction form
    525,985.56/725,682.78 = 299,470.68/x
  3. Step 3: Cross multiply
    525,985.56x = 725,682.78 × 299,470.68
  4. Step 4: Simplify right side
    525,985.56x = 217,320,715,590.89
  5. Step 5: Solve for x
    x = 217,320,715,590.89/525,985.56
  6. Step 6: Final answer
    x = 413,168.60

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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.