Finding the Fourth Proportional to 847,393.16, 1,169,412.18 and 465,428.84
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Solution
The fourth proportional to 847,393.16, 1,169,412.18 and 465,428.84 is: 642,297.08
Step by Step Solution
- Step 1: Write the proportion equation
847,393.16 : 1,169,412.18 = 465,428.84 : x - Step 2: Convert to fraction form
847,393.16/1,169,412.18 = 465,428.84/x - Step 3: Cross multiply
847,393.16x = 1,169,412.18 × 465,428.84 - Step 4: Simplify right side
847,393.16x = 544,278,154,419.27 - Step 5: Solve for x
x = 544,278,154,419.27/847,393.16 - Step 6: Final answer
x = 642,297.08
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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.