Finding the Fourth Proportional to 819,153.18, 1,130,436.54 and 456,599.97
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Solution
The fourth proportional to 819,153.18, 1,130,436.54 and 456,599.97 is: 630,110.83
Step by Step Solution
- Step 1: Write the proportion equation
819,153.18 : 1,130,436.54 = 456,599.97 : x - Step 2: Convert to fraction form
819,153.18/1,130,436.54 = 456,599.97/x - Step 3: Cross multiply
819,153.18x = 1,130,436.54 × 456,599.97 - Step 4: Simplify right side
819,153.18x = 516,157,290,250.90 - Step 5: Solve for x
x = 516,157,290,250.90/819,153.18 - Step 6: Final answer
x = 630,110.83
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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.