Finding the Fourth Proportional to 982,875.12, 1,356,786.12 and 660,772
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Solution
The fourth proportional to 982,875.12, 1,356,786.12 and 660,772 is: 912,146.68
Step by Step Solution
- Step 1: Write the proportion equation
982,875.12 : 1,356,786.12 = 660,772 : x - Step 2: Convert to fraction form
982,875.12/1,356,786.12 = 660,772/x - Step 3: Cross multiply
982,875.12x = 1,356,786.12 × 660,772 - Step 4: Simplify right side
982,875.12x = 896,526,278,084.64 - Step 5: Solve for x
x = 896,526,278,084.64/982,875.12 - Step 6: Final answer
x = 912,146.68
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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.