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Finding the Fourth Proportional to 612,874.04, 919,314.96 and 213,522.26

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Solution

The fourth proportional to 612,874.04, 919,314.96 and 213,522.26 is: 320,284.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,874.04 : 919,314.96 = 213,522.26 : x
  2. Step 2: Convert to fraction form
    612,874.04/919,314.96 = 213,522.26/x
  3. Step 3: Cross multiply
    612,874.04x = 919,314.96 × 213,522.26
  4. Step 4: Simplify right side
    612,874.04x = 196,294,207,911.01
  5. Step 5: Solve for x
    x = 196,294,207,911.01/612,874.04
  6. Step 6: Final answer
    x = 320,284.75

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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.