Finding the Fourth Proportional to 810,164.12, 1,117,992.42 and 465,974.06
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Solution
The fourth proportional to 810,164.12, 1,117,992.42 and 465,974.06 is: 643,024.61
Step by Step Solution
- Step 1: Write the proportion equation
810,164.12 : 1,117,992.42 = 465,974.06 : x - Step 2: Convert to fraction form
810,164.12/1,117,992.42 = 465,974.06/x - Step 3: Cross multiply
810,164.12x = 1,117,992.42 × 465,974.06 - Step 4: Simplify right side
810,164.12x = 520,955,466,996.63 - Step 5: Solve for x
x = 520,955,466,996.63/810,164.12 - Step 6: Final answer
x = 643,024.61
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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.