Finding the Fourth Proportional to 816,964.40, 1,127,331.89 and 472,731.66
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Solution
The fourth proportional to 816,964.40, 1,127,331.89 and 472,731.66 is: 652,323.99
Step by Step Solution
- Step 1: Write the proportion equation
816,964.40 : 1,127,331.89 = 472,731.66 : x - Step 2: Convert to fraction form
816,964.40/1,127,331.89 = 472,731.66/x - Step 3: Cross multiply
816,964.40x = 1,127,331.89 × 472,731.66 - Step 4: Simplify right side
816,964.40x = 532,925,473,366.98 - Step 5: Solve for x
x = 532,925,473,366.98/816,964.40 - Step 6: Final answer
x = 652,323.99
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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.