Finding the Fourth Proportional to 697,418.08, 1,045,128.99 and 397,278.45
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Solution
The fourth proportional to 697,418.08, 1,045,128.99 and 397,278.45 is: 595,349.10
Step by Step Solution
- Step 1: Write the proportion equation
697,418.08 : 1,045,128.99 = 397,278.45 : x - Step 2: Convert to fraction form
697,418.08/1,045,128.99 = 397,278.45/x - Step 3: Cross multiply
697,418.08x = 1,045,128.99 × 397,278.45 - Step 4: Simplify right side
697,418.08x = 415,207,226,687.06 - Step 5: Solve for x
x = 415,207,226,687.06/697,418.08 - Step 6: Final answer
x = 595,349.10
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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.