Home / 526,820.37-727,013.87-285,102.80

Finding the Fourth Proportional to 526,820.37, 727,013.87 and 285,102.80

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Solution

The fourth proportional to 526,820.37, 727,013.87 and 285,102.80 is: 393,442.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,820.37 : 727,013.87 = 285,102.80 : x
  2. Step 2: Convert to fraction form
    526,820.37/727,013.87 = 285,102.80/x
  3. Step 3: Cross multiply
    526,820.37x = 727,013.87 × 285,102.80
  4. Step 4: Simplify right side
    526,820.37x = 207,273,689,975.84
  5. Step 5: Solve for x
    x = 207,273,689,975.84/526,820.37
  6. Step 6: Final answer
    x = 393,442.82

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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.