Finding the Fourth Proportional to 616,739.68, 851,053.80 and 374,988.70
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Solution
The fourth proportional to 616,739.68, 851,053.80 and 374,988.70 is: 517,455.85
Step by Step Solution
- Step 1: Write the proportion equation
616,739.68 : 851,053.80 = 374,988.70 : x - Step 2: Convert to fraction form
616,739.68/851,053.80 = 374,988.70/x - Step 3: Cross multiply
616,739.68x = 851,053.80 × 374,988.70 - Step 4: Simplify right side
616,739.68x = 319,135,558,092.06 - Step 5: Solve for x
x = 319,135,558,092.06/616,739.68 - Step 6: Final answer
x = 517,455.85
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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.