Finding the Fourth Proportional to 714,607.24, 986,159.66 and 392,338.08
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Solution
The fourth proportional to 714,607.24, 986,159.66 and 392,338.08 is: 541,427.47
Step by Step Solution
- Step 1: Write the proportion equation
714,607.24 : 986,159.66 = 392,338.08 : x - Step 2: Convert to fraction form
714,607.24/986,159.66 = 392,338.08/x - Step 3: Cross multiply
714,607.24x = 986,159.66 × 392,338.08 - Step 4: Simplify right side
714,607.24x = 386,907,987,823.06 - Step 5: Solve for x
x = 386,907,987,823.06/714,607.24 - Step 6: Final answer
x = 541,427.47
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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.