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Finding the Fourth Proportional to 630,835.80, 946,472.40 and 276,104.40

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Solution

The fourth proportional to 630,835.80, 946,472.40 and 276,104.40 is: 414,252.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,835.80 : 946,472.40 = 276,104.40 : x
  2. Step 2: Convert to fraction form
    630,835.80/946,472.40 = 276,104.40/x
  3. Step 3: Cross multiply
    630,835.80x = 946,472.40 × 276,104.40
  4. Step 4: Simplify right side
    630,835.80x = 261,325,194,118.56
  5. Step 5: Solve for x
    x = 261,325,194,118.56/630,835.80
  6. Step 6: Final answer
    x = 414,252.32

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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.