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Finding the Fourth Proportional to 488,914.80, 734,063.40 and 302,290.80

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Solution

The fourth proportional to 488,914.80, 734,063.40 and 302,290.80 is: 453,863.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,914.80 : 734,063.40 = 302,290.80 : x
  2. Step 2: Convert to fraction form
    488,914.80/734,063.40 = 302,290.80/x
  3. Step 3: Cross multiply
    488,914.80x = 734,063.40 × 302,290.80
  4. Step 4: Simplify right side
    488,914.80x = 221,900,612,436.72
  5. Step 5: Solve for x
    x = 221,900,612,436.72/488,914.80
  6. Step 6: Final answer
    x = 453,863.56

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1.5x scale

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.