Home / 1,288,366.40-1,932,549.60-447,003.20

Finding the Fourth Proportional to 1,288,366.40, 1,932,549.60 and 447,003.20

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Solution

The fourth proportional to 1,288,366.40, 1,932,549.60 and 447,003.20 is: 670,504.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,366.40 : 1,932,549.60 = 447,003.20 : x
  2. Step 2: Convert to fraction form
    1,288,366.40/1,932,549.60 = 447,003.20/x
  3. Step 3: Cross multiply
    1,288,366.40x = 1,932,549.60 × 447,003.20
  4. Step 4: Simplify right side
    1,288,366.40x = 863,855,855,358.72
  5. Step 5: Solve for x
    x = 863,855,855,358.72/1,288,366.40
  6. Step 6: Final answer
    x = 670,504.80

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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.