Finding the Fourth Proportional to 656,347.13, 905,759.84 and 354,541.13
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Solution
The fourth proportional to 656,347.13, 905,759.84 and 354,541.13 is: 489,267.19
Step by Step Solution
- Step 1: Write the proportion equation
656,347.13 : 905,759.84 = 354,541.13 : x - Step 2: Convert to fraction form
656,347.13/905,759.84 = 354,541.13/x - Step 3: Cross multiply
656,347.13x = 905,759.84 × 354,541.13 - Step 4: Simplify right side
656,347.13x = 321,129,113,539.77 - Step 5: Solve for x
x = 321,129,113,539.77/656,347.13 - Step 6: Final answer
x = 489,267.19
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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.