Finding the Fourth Proportional to 708,257.63, 977,367.06 and 385,960.80
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Solution
The fourth proportional to 708,257.63, 977,367.06 and 385,960.80 is: 532,610.39
Step by Step Solution
- Step 1: Write the proportion equation
708,257.63 : 977,367.06 = 385,960.80 : x - Step 2: Convert to fraction form
708,257.63/977,367.06 = 385,960.80/x - Step 3: Cross multiply
708,257.63x = 977,367.06 × 385,960.80 - Step 4: Simplify right side
708,257.63x = 377,225,372,371.25 - Step 5: Solve for x
x = 377,225,372,371.25/708,257.63 - Step 6: Final answer
x = 532,610.39
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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.