Finding the Fourth Proportional to 644,542.80, 965,647.80 and 551,230.80
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Solution
The fourth proportional to 644,542.80, 965,647.80 and 551,230.80 is: 825,848.66
Step by Step Solution
- Step 1: Write the proportion equation
644,542.80 : 965,647.80 = 551,230.80 : x - Step 2: Convert to fraction form
644,542.80/965,647.80 = 551,230.80/x - Step 3: Cross multiply
644,542.80x = 965,647.80 × 551,230.80 - Step 4: Simplify right side
644,542.80x = 532,294,809,312.24 - Step 5: Solve for x
x = 532,294,809,312.24/644,542.80 - Step 6: Final answer
x = 825,848.66
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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.