Finding the Fourth Proportional to 992,328.12, 1,486,780.20 and 543,372.12
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Solution
The fourth proportional to 992,328.12, 1,486,780.20 and 543,372.12 is: 814,120.75
Step by Step Solution
- Step 1: Write the proportion equation
992,328.12 : 1,486,780.20 = 543,372.12 : x - Step 2: Convert to fraction form
992,328.12/1,486,780.20 = 543,372.12/x - Step 3: Cross multiply
992,328.12x = 1,486,780.20 × 543,372.12 - Step 4: Simplify right side
992,328.12x = 807,874,909,248.02 - Step 5: Solve for x
x = 807,874,909,248.02/992,328.12 - Step 6: Final answer
x = 814,120.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.