Home / 699,049.92-964,675.26-393,130.20

Finding the Fourth Proportional to 699,049.92, 964,675.26 and 393,130.20

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Solution

The fourth proportional to 699,049.92, 964,675.26 and 393,130.20 is: 542,512.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,049.92 : 964,675.26 = 393,130.20 : x
  2. Step 2: Convert to fraction form
    699,049.92/964,675.26 = 393,130.20/x
  3. Step 3: Cross multiply
    699,049.92x = 964,675.26 × 393,130.20
  4. Step 4: Simplify right side
    699,049.92x = 379,242,977,898.85
  5. Step 5: Solve for x
    x = 379,242,977,898.85/699,049.92
  6. Step 6: Final answer
    x = 542,512.01

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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.