Finding the Fourth Proportional to 818,330.40, 1,128,990.36 and 817,068.84
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Solution
The fourth proportional to 818,330.40, 1,128,990.36 and 817,068.84 is: 1,127,249.88
Step by Step Solution
- Step 1: Write the proportion equation
818,330.40 : 1,128,990.36 = 817,068.84 : x - Step 2: Convert to fraction form
818,330.40/1,128,990.36 = 817,068.84/x - Step 3: Cross multiply
818,330.40x = 1,128,990.36 × 817,068.84 - Step 4: Simplify right side
818,330.40x = 922,462,843,816.38 - Step 5: Solve for x
x = 922,462,843,816.38/818,330.40 - Step 6: Final answer
x = 1,127,249.88
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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.