Finding the Fourth Proportional to 721,707.84, 995,714.08 and 419,653.44
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Solution
The fourth proportional to 721,707.84, 995,714.08 and 419,653.44 is: 578,980.60
Step by Step Solution
- Step 1: Write the proportion equation
721,707.84 : 995,714.08 = 419,653.44 : x - Step 2: Convert to fraction form
721,707.84/995,714.08 = 419,653.44/x - Step 3: Cross multiply
721,707.84x = 995,714.08 × 419,653.44 - Step 4: Simplify right side
721,707.84x = 417,854,838,928.44 - Step 5: Solve for x
x = 417,854,838,928.44/721,707.84 - Step 6: Final answer
x = 578,980.60
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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.