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Finding the Fourth Proportional to 550,272.08, 759,378.12 and 359,172.56

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Solution

The fourth proportional to 550,272.08, 759,378.12 and 359,172.56 is: 495,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,272.08 : 759,378.12 = 359,172.56 : x
  2. Step 2: Convert to fraction form
    550,272.08/759,378.12 = 359,172.56/x
  3. Step 3: Cross multiply
    550,272.08x = 759,378.12 × 359,172.56
  4. Step 4: Simplify right side
    550,272.08x = 272,747,783,368.39
  5. Step 5: Solve for x
    x = 272,747,783,368.39/550,272.08
  6. Step 6: Final answer
    x = 495,659.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.