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Finding the Fourth Proportional to 503,230.80, 694,459.64 and 276,890.80

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Solution

The fourth proportional to 503,230.80, 694,459.64 and 276,890.80 is: 382,109.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,230.80 : 694,459.64 = 276,890.80 : x
  2. Step 2: Convert to fraction form
    503,230.80/694,459.64 = 276,890.80/x
  3. Step 3: Cross multiply
    503,230.80x = 694,459.64 × 276,890.80
  4. Step 4: Simplify right side
    503,230.80x = 192,289,485,287.31
  5. Step 5: Solve for x
    x = 192,289,485,287.31/503,230.80
  6. Step 6: Final answer
    x = 382,109.93

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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.