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Finding the Fourth Proportional to 488,948.40, 732,839.40 and 204,638.40

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Solution

The fourth proportional to 488,948.40, 732,839.40 and 204,638.40 is: 306,713.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,948.40 : 732,839.40 = 204,638.40 : x
  2. Step 2: Convert to fraction form
    488,948.40/732,839.40 = 204,638.40/x
  3. Step 3: Cross multiply
    488,948.40x = 732,839.40 × 204,638.40
  4. Step 4: Simplify right side
    488,948.40x = 149,967,082,272.96
  5. Step 5: Solve for x
    x = 149,967,082,272.96/488,948.40
  6. Step 6: Final answer
    x = 306,713.51

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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.