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Finding the Fourth Proportional to 809,672.40, 1,214,508.60 and 248,706.90

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Solution

The fourth proportional to 809,672.40, 1,214,508.60 and 248,706.90 is: 373,060.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,672.40 : 1,214,508.60 = 248,706.90 : x
  2. Step 2: Convert to fraction form
    809,672.40/1,214,508.60 = 248,706.90/x
  3. Step 3: Cross multiply
    809,672.40x = 1,214,508.60 × 248,706.90
  4. Step 4: Simplify right side
    809,672.40x = 302,056,668,929.34
  5. Step 5: Solve for x
    x = 302,056,668,929.34/809,672.40
  6. Step 6: Final answer
    x = 373,060.35

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Similar ratio
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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.