Finding the Fourth Proportional to 765,239.79, 1,055,745.68 and 478,650.99
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Solution
The fourth proportional to 765,239.79, 1,055,745.68 and 478,650.99 is: 660,359.95
Step by Step Solution
- Step 1: Write the proportion equation
765,239.79 : 1,055,745.68 = 478,650.99 : x - Step 2: Convert to fraction form
765,239.79/1,055,745.68 = 478,650.99/x - Step 3: Cross multiply
765,239.79x = 1,055,745.68 × 478,650.99 - Step 4: Simplify right side
765,239.79x = 505,333,712,526.97 - Step 5: Solve for x
x = 505,333,712,526.97/765,239.79 - Step 6: Final answer
x = 660,359.95
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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.