Finding the Fourth Proportional to 987,928.07, 1,363,342.12 and 535,219.07
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Solution
The fourth proportional to 987,928.07, 1,363,342.12 and 535,219.07 is: 738,603.06
Step by Step Solution
- Step 1: Write the proportion equation
987,928.07 : 1,363,342.12 = 535,219.07 : x - Step 2: Convert to fraction form
987,928.07/1,363,342.12 = 535,219.07/x - Step 3: Cross multiply
987,928.07x = 1,363,342.12 × 535,219.07 - Step 4: Simplify right side
987,928.07x = 729,686,693,403.47 - Step 5: Solve for x
x = 729,686,693,403.47/987,928.07 - Step 6: Final answer
x = 738,603.06
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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.