Finding the Fourth Proportional to 619,051.54, 853,929.19 and 389,244.99
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Solution
The fourth proportional to 619,051.54, 853,929.19 and 389,244.99 is: 536,930.52
Step by Step Solution
- Step 1: Write the proportion equation
619,051.54 : 853,929.19 = 389,244.99 : x - Step 2: Convert to fraction form
619,051.54/853,929.19 = 389,244.99/x - Step 3: Cross multiply
619,051.54x = 853,929.19 × 389,244.99 - Step 4: Simplify right side
619,051.54x = 332,387,660,521.55 - Step 5: Solve for x
x = 332,387,660,521.55/619,051.54 - Step 6: Final answer
x = 536,930.52
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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.