Finding the Fourth Proportional to 876,991.75, 1,210,248.62 and 474,583.75
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Solution
The fourth proportional to 876,991.75, 1,210,248.62 and 474,583.75 is: 654,925.58
Step by Step Solution
- Step 1: Write the proportion equation
876,991.75 : 1,210,248.62 = 474,583.75 : x - Step 2: Convert to fraction form
876,991.75/1,210,248.62 = 474,583.75/x - Step 3: Cross multiply
876,991.75x = 1,210,248.62 × 474,583.75 - Step 4: Simplify right side
876,991.75x = 574,364,328,511.93 - Step 5: Solve for x
x = 574,364,328,511.93/876,991.75 - Step 6: Final answer
x = 654,925.58
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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.