Finding the Fourth Proportional to 818,547.80, 1,121,415.58 and 787,866.54
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Solution
The fourth proportional to 818,547.80, 1,121,415.58 and 787,866.54 is: 1,079,382.07
Step by Step Solution
- Step 1: Write the proportion equation
818,547.80 : 1,121,415.58 = 787,866.54 : x - Step 2: Convert to fraction form
818,547.80/1,121,415.58 = 787,866.54/x - Step 3: Cross multiply
818,547.80x = 1,121,415.58 × 787,866.54 - Step 4: Simplify right side
818,547.80x = 883,525,810,947.03 - Step 5: Solve for x
x = 883,525,810,947.03/818,547.80 - Step 6: Final answer
x = 1,079,382.07
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.