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Finding the Fourth Proportional to 663,739.40, 994,209.24 and 450,638.12

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Solution

The fourth proportional to 663,739.40, 994,209.24 and 450,638.12 is: 675,006.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,739.40 : 994,209.24 = 450,638.12 : x
  2. Step 2: Convert to fraction form
    663,739.40/994,209.24 = 450,638.12/x
  3. Step 3: Cross multiply
    663,739.40x = 994,209.24 × 450,638.12
  4. Step 4: Simplify right side
    663,739.40x = 448,028,586,975.65
  5. Step 5: Solve for x
    x = 448,028,586,975.65/663,739.40
  6. Step 6: Final answer
    x = 675,006.77

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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.