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Finding the Fourth Proportional to 503,173, 694,378.74 and 276,813.64

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Solution

The fourth proportional to 503,173, 694,378.74 and 276,813.64 is: 382,002.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,173 : 694,378.74 = 276,813.64 : x
  2. Step 2: Convert to fraction form
    503,173/694,378.74 = 276,813.64/x
  3. Step 3: Cross multiply
    503,173x = 694,378.74 × 276,813.64
  4. Step 4: Simplify right side
    503,173x = 192,213,506,558.01
  5. Step 5: Solve for x
    x = 192,213,506,558.01/503,173
  6. Step 6: Final answer
    x = 382,002.82

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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.