Finding the Fourth Proportional to 498,391.47, 687,774.08 and 283,531.07
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Solution
The fourth proportional to 498,391.47, 687,774.08 and 283,531.07 is: 391,269.37
Step by Step Solution
- Step 1: Write the proportion equation
498,391.47 : 687,774.08 = 283,531.07 : x - Step 2: Convert to fraction form
498,391.47/687,774.08 = 283,531.07/x - Step 3: Cross multiply
498,391.47x = 687,774.08 × 283,531.07 - Step 4: Simplify right side
498,391.47x = 195,005,315,964.14 - Step 5: Solve for x
x = 195,005,315,964.14/498,391.47 - Step 6: Final answer
x = 391,269.37
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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.