Finding the Fourth Proportional to 982,878.19, 1,356,415.56 and 553,186.15
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Solution
The fourth proportional to 982,878.19, 1,356,415.56 and 553,186.15 is: 763,421.46
Step by Step Solution
- Step 1: Write the proportion equation
982,878.19 : 1,356,415.56 = 553,186.15 : x - Step 2: Convert to fraction form
982,878.19/1,356,415.56 = 553,186.15/x - Step 3: Cross multiply
982,878.19x = 1,356,415.56 × 553,186.15 - Step 4: Simplify right side
982,878.19x = 750,350,301,436.49 - Step 5: Solve for x
x = 750,350,301,436.49/982,878.19 - Step 6: Final answer
x = 763,421.46
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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.