Finding the Fourth Proportional to 878,010.88, 1,211,655.04 and 475,602.88
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Solution
The fourth proportional to 878,010.88, 1,211,655.04 and 475,602.88 is: 656,331.99
Step by Step Solution
- Step 1: Write the proportion equation
878,010.88 : 1,211,655.04 = 475,602.88 : x - Step 2: Convert to fraction form
878,010.88/1,211,655.04 = 475,602.88/x - Step 3: Cross multiply
878,010.88x = 1,211,655.04 × 475,602.88 - Step 4: Simplify right side
878,010.88x = 576,266,626,590.52 - Step 5: Solve for x
x = 576,266,626,590.52/878,010.88 - Step 6: Final answer
x = 656,331.99
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1.5x scale
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.