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Finding the Fourth Proportional to 880,379.88, 1,216,063.88 and 728,033.44

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Solution

The fourth proportional to 880,379.88, 1,216,063.88 and 728,033.44 is: 1,005,628.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,379.88 : 1,216,063.88 = 728,033.44 : x
  2. Step 2: Convert to fraction form
    880,379.88/1,216,063.88 = 728,033.44/x
  3. Step 3: Cross multiply
    880,379.88x = 1,216,063.88 × 728,033.44
  4. Step 4: Simplify right side
    880,379.88x = 885,335,169,816.15
  5. Step 5: Solve for x
    x = 885,335,169,816.15/880,379.88
  6. Step 6: Final answer
    x = 1,005,628.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.