Finding the Fourth Proportional to 739,180.55, 1,020,068.30 and 399,647.99
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Solution
The fourth proportional to 739,180.55, 1,020,068.30 and 399,647.99 is: 551,513.76
Step by Step Solution
- Step 1: Write the proportion equation
739,180.55 : 1,020,068.30 = 399,647.99 : x - Step 2: Convert to fraction form
739,180.55/1,020,068.30 = 399,647.99/x - Step 3: Cross multiply
739,180.55x = 1,020,068.30 × 399,647.99 - Step 4: Simplify right side
739,180.55x = 407,668,243,759.48 - Step 5: Solve for x
x = 407,668,243,759.48/739,180.55 - Step 6: Final answer
x = 551,513.76
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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.