Home / 383,124.30-574,747.20-130,428.60

Finding the Fourth Proportional to 383,124.30, 574,747.20 and 130,428.60

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Solution

The fourth proportional to 383,124.30, 574,747.20 and 130,428.60 is: 195,663.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,124.30 : 574,747.20 = 130,428.60 : x
  2. Step 2: Convert to fraction form
    383,124.30/574,747.20 = 130,428.60/x
  3. Step 3: Cross multiply
    383,124.30x = 574,747.20 × 130,428.60
  4. Step 4: Simplify right side
    383,124.30x = 74,963,472,649.92
  5. Step 5: Solve for x
    x = 74,963,472,649.92/383,124.30
  6. Step 6: Final answer
    x = 195,663.58

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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.