Finding the Fourth Proportional to 982,887.67, 1,356,428.64 and 553,195.63
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Solution
The fourth proportional to 982,887.67, 1,356,428.64 and 553,195.63 is: 763,434.54
Step by Step Solution
- Step 1: Write the proportion equation
982,887.67 : 1,356,428.64 = 553,195.63 : x - Step 2: Convert to fraction form
982,887.67/1,356,428.64 = 553,195.63/x - Step 3: Cross multiply
982,887.67x = 1,356,428.64 × 553,195.63 - Step 4: Simplify right side
982,887.67x = 750,370,396,054.84 - Step 5: Solve for x
x = 750,370,396,054.84/982,887.67 - Step 6: Final answer
x = 763,434.54
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1.5x scale
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.