Finding the Fourth Proportional to 1,246,304.10, 1,869,456.15 and 771,449.70
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Solution
The fourth proportional to 1,246,304.10, 1,869,456.15 and 771,449.70 is: 1,157,174.55
Step by Step Solution
- Step 1: Write the proportion equation
1,246,304.10 : 1,869,456.15 = 771,449.70 : x - Step 2: Convert to fraction form
1,246,304.10/1,869,456.15 = 771,449.70/x - Step 3: Cross multiply
1,246,304.10x = 1,869,456.15 × 771,449.70 - Step 4: Simplify right side
1,246,304.10x = 1,442,191,386,080.65 - Step 5: Solve for x
x = 1,442,191,386,080.65/1,246,304.10 - Step 6: Final answer
x = 1,157,174.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.