Home / 434,738.80-652,108.20-285,439.60

Finding the Fourth Proportional to 434,738.80, 652,108.20 and 285,439.60

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Solution

The fourth proportional to 434,738.80, 652,108.20 and 285,439.60 is: 428,159.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,738.80 : 652,108.20 = 285,439.60 : x
  2. Step 2: Convert to fraction form
    434,738.80/652,108.20 = 285,439.60/x
  3. Step 3: Cross multiply
    434,738.80x = 652,108.20 × 285,439.60
  4. Step 4: Simplify right side
    434,738.80x = 186,137,503,764.72
  5. Step 5: Solve for x
    x = 186,137,503,764.72/434,738.80
  6. Step 6: Final answer
    x = 428,159.40

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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.