Finding the Fourth Proportional to 679,143.96, 937,218.06 and 373,239.97
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Solution
The fourth proportional to 679,143.96, 937,218.06 and 373,239.97 is: 515,070.82
Step by Step Solution
- Step 1: Write the proportion equation
679,143.96 : 937,218.06 = 373,239.97 : x - Step 2: Convert to fraction form
679,143.96/937,218.06 = 373,239.97/x - Step 3: Cross multiply
679,143.96x = 937,218.06 × 373,239.97 - Step 4: Simplify right side
679,143.96x = 349,807,238,254.81 - Step 5: Solve for x
x = 349,807,238,254.81/679,143.96 - Step 6: Final answer
x = 515,070.82
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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.