Finding the Fourth Proportional to 986,809.08, 1,361,807.88 and 578,917.92
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Solution
The fourth proportional to 986,809.08, 1,361,807.88 and 578,917.92 is: 798,913.39
Step by Step Solution
- Step 1: Write the proportion equation
986,809.08 : 1,361,807.88 = 578,917.92 : x - Step 2: Convert to fraction form
986,809.08/1,361,807.88 = 578,917.92/x - Step 3: Cross multiply
986,809.08x = 1,361,807.88 × 578,917.92 - Step 4: Simplify right side
986,809.08x = 788,374,985,329.21 - Step 5: Solve for x
x = 788,374,985,329.21/986,809.08 - Step 6: Final answer
x = 798,913.39
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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.