Home / 487,985.94-730,912.78-202,811.85

Finding the Fourth Proportional to 487,985.94, 730,912.78 and 202,811.85

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Solution

The fourth proportional to 487,985.94, 730,912.78 and 202,811.85 is: 303,774.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,985.94 : 730,912.78 = 202,811.85 : x
  2. Step 2: Convert to fraction form
    487,985.94/730,912.78 = 202,811.85/x
  3. Step 3: Cross multiply
    487,985.94x = 730,912.78 × 202,811.85
  4. Step 4: Simplify right side
    487,985.94x = 148,237,773,100.44
  5. Step 5: Solve for x
    x = 148,237,773,100.44/487,985.94
  6. Step 6: Final answer
    x = 303,774.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.