Finding the Fourth Proportional to 1,229,178.51, 1,696,377.75 and 745,866.09
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Solution
The fourth proportional to 1,229,178.51, 1,696,377.75 and 745,866.09 is: 1,029,362.81
Step by Step Solution
- Step 1: Write the proportion equation
1,229,178.51 : 1,696,377.75 = 745,866.09 : x - Step 2: Convert to fraction form
1,229,178.51/1,696,377.75 = 745,866.09/x - Step 3: Cross multiply
1,229,178.51x = 1,696,377.75 × 745,866.09 - Step 4: Simplify right side
1,229,178.51x = 1,265,270,639,555.50 - Step 5: Solve for x
x = 1,265,270,639,555.50/1,229,178.51 - Step 6: Final answer
x = 1,029,362.81
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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.