Finding the Fourth Proportional to 465,419.80, 698,129.70 and 372,107.80
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Solution
The fourth proportional to 465,419.80, 698,129.70 and 372,107.80 is: 558,161.70
Step by Step Solution
- Step 1: Write the proportion equation
465,419.80 : 698,129.70 = 372,107.80 : x - Step 2: Convert to fraction form
465,419.80/698,129.70 = 372,107.80/x - Step 3: Cross multiply
465,419.80x = 698,129.70 × 372,107.80 - Step 4: Simplify right side
465,419.80x = 259,779,506,781.66 - Step 5: Solve for x
x = 259,779,506,781.66/465,419.80 - Step 6: Final answer
x = 558,161.70
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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.