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Finding the Fourth Proportional to 630,699.75, 946,365.39 and 289,105.88

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Solution

The fourth proportional to 630,699.75, 946,365.39 and 289,105.88 is: 433,803.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,699.75 : 946,365.39 = 289,105.88 : x
  2. Step 2: Convert to fraction form
    630,699.75/946,365.39 = 289,105.88/x
  3. Step 3: Cross multiply
    630,699.75x = 946,365.39 × 289,105.88
  4. Step 4: Simplify right side
    630,699.75x = 273,599,794,145.67
  5. Step 5: Solve for x
    x = 273,599,794,145.67/630,699.75
  6. Step 6: Final answer
    x = 433,803.56

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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.