Finding the Fourth Proportional to 987,975.46, 1,363,405.84 and 535,266.46
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Solution
The fourth proportional to 987,975.46, 1,363,405.84 and 535,266.46 is: 738,667.56
Step by Step Solution
- Step 1: Write the proportion equation
987,975.46 : 1,363,405.84 = 535,266.46 : x - Step 2: Convert to fraction form
987,975.46/1,363,405.84 = 535,266.46/x - Step 3: Cross multiply
987,975.46x = 1,363,405.84 × 535,266.46 - Step 4: Simplify right side
987,975.46x = 729,785,417,520.13 - Step 5: Solve for x
x = 729,785,417,520.13/987,975.46 - Step 6: Final answer
x = 738,667.56
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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.