Finding the Fourth Proportional to 964,905.60, 1,331,729.16 and 535,324.13
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Solution
The fourth proportional to 964,905.60, 1,331,729.16 and 535,324.13 is: 738,835.75
Step by Step Solution
- Step 1: Write the proportion equation
964,905.60 : 1,331,729.16 = 535,324.13 : x - Step 2: Convert to fraction form
964,905.60/1,331,729.16 = 535,324.13/x - Step 3: Cross multiply
964,905.60x = 1,331,729.16 × 535,324.13 - Step 4: Simplify right side
964,905.60x = 712,906,753,972.63 - Step 5: Solve for x
x = 712,906,753,972.63/964,905.60 - Step 6: Final answer
x = 738,835.75
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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.