Finding the Fourth Proportional to 982,765.80, 1,356,212.16 and 553,053.12
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Solution
The fourth proportional to 982,765.80, 1,356,212.16 and 553,053.12 is: 763,210.69
Step by Step Solution
- Step 1: Write the proportion equation
982,765.80 : 1,356,212.16 = 553,053.12 : x - Step 2: Convert to fraction form
982,765.80/1,356,212.16 = 553,053.12/x - Step 3: Cross multiply
982,765.80x = 1,356,212.16 × 553,053.12 - Step 4: Simplify right side
982,765.80x = 750,057,366,469.94 - Step 5: Solve for x
x = 750,057,366,469.94/982,765.80 - Step 6: Final answer
x = 763,210.69
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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.