Home / 1,288,703.44-1,933,292.94-424,187.20

Finding the Fourth Proportional to 1,288,703.44, 1,933,292.94 and 424,187.20

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Solution

The fourth proportional to 1,288,703.44, 1,933,292.94 and 424,187.20 is: 636,359.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,703.44 : 1,933,292.94 = 424,187.20 : x
  2. Step 2: Convert to fraction form
    1,288,703.44/1,933,292.94 = 424,187.20/x
  3. Step 3: Cross multiply
    1,288,703.44x = 1,933,292.94 × 424,187.20
  4. Step 4: Simplify right side
    1,288,703.44x = 820,078,118,998.37
  5. Step 5: Solve for x
    x = 820,078,118,998.37/1,288,703.44
  6. Step 6: Final answer
    x = 636,359.07

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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.