Finding the Fourth Proportional to 1,631,390.36, 2,251,678.80 and 906,487.28
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Solution
The fourth proportional to 1,631,390.36, 2,251,678.80 and 906,487.28 is: 1,251,152.54
Step by Step Solution
- Step 1: Write the proportion equation
1,631,390.36 : 2,251,678.80 = 906,487.28 : x - Step 2: Convert to fraction form
1,631,390.36/2,251,678.80 = 906,487.28/x - Step 3: Cross multiply
1,631,390.36x = 2,251,678.80 × 906,487.28 - Step 4: Simplify right side
1,631,390.36x = 2,041,118,190,845.66 - Step 5: Solve for x
x = 2,041,118,190,845.66/1,631,390.36 - Step 6: Final answer
x = 1,251,152.54
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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.