Finding the Fourth Proportional to 878,003.74, 1,211,643.12 and 475,595.74
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Solution
The fourth proportional to 878,003.74, 1,211,643.12 and 475,595.74 is: 656,321.02
Step by Step Solution
- Step 1: Write the proportion equation
878,003.74 : 1,211,643.12 = 475,595.74 : x - Step 2: Convert to fraction form
878,003.74/1,211,643.12 = 475,595.74/x - Step 3: Cross multiply
878,003.74x = 1,211,643.12 × 475,595.74 - Step 4: Simplify right side
878,003.74x = 576,252,306,272.31 - Step 5: Solve for x
x = 576,252,306,272.31/878,003.74 - Step 6: Final answer
x = 656,321.02
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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.