Finding the Fourth Proportional to 1,515,621.62, 2,091,547.76 and 827,290.74
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Solution
The fourth proportional to 1,515,621.62, 2,091,547.76 and 827,290.74 is: 1,141,655.72
Step by Step Solution
- Step 1: Write the proportion equation
1,515,621.62 : 2,091,547.76 = 827,290.74 : x - Step 2: Convert to fraction form
1,515,621.62/2,091,547.76 = 827,290.74/x - Step 3: Cross multiply
1,515,621.62x = 2,091,547.76 × 827,290.74 - Step 4: Simplify right side
1,515,621.62x = 1,730,318,094,115.74 - Step 5: Solve for x
x = 1,730,318,094,115.74/1,515,621.62 - Step 6: Final answer
x = 1,141,655.72
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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.