Finding the Fourth Proportional to 878,460.87, 1,212,267.52 and 491,272.00
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Solution
The fourth proportional to 878,460.87, 1,212,267.52 and 491,272.00 is: 677,950.61
Step by Step Solution
- Step 1: Write the proportion equation
878,460.87 : 1,212,267.52 = 491,272.00 : x - Step 2: Convert to fraction form
878,460.87/1,212,267.52 = 491,272.00/x - Step 3: Cross multiply
878,460.87x = 1,212,267.52 × 491,272.00 - Step 4: Simplify right side
878,460.87x = 595,553,084,826.59 - Step 5: Solve for x
x = 595,553,084,826.59/878,460.87 - Step 6: Final answer
x = 677,950.61
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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.