Finding the Fourth Proportional to 766,815.29, 1,058,283.84 and 460,990.68
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Solution
The fourth proportional to 766,815.29, 1,058,283.84 and 460,990.68 is: 636,214.47
Step by Step Solution
- Step 1: Write the proportion equation
766,815.29 : 1,058,283.84 = 460,990.68 : x - Step 2: Convert to fraction form
766,815.29/1,058,283.84 = 460,990.68/x - Step 3: Cross multiply
766,815.29x = 1,058,283.84 × 460,990.68 - Step 4: Simplify right side
766,815.29x = 487,858,987,034.61 - Step 5: Solve for x
x = 487,858,987,034.61/766,815.29 - Step 6: Final answer
x = 636,214.47
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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.