Finding the Fourth Proportional to 1,557,686.01, 2,149,714.68 and 869,491.80
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Solution
The fourth proportional to 1,557,686.01, 2,149,714.68 and 869,491.80 is: 1,199,958.96
Step by Step Solution
- Step 1: Write the proportion equation
1,557,686.01 : 2,149,714.68 = 869,491.80 : x - Step 2: Convert to fraction form
1,557,686.01/2,149,714.68 = 869,491.80/x - Step 3: Cross multiply
1,557,686.01x = 2,149,714.68 × 869,491.80 - Step 4: Simplify right side
1,557,686.01x = 1,869,159,286,599.62 - Step 5: Solve for x
x = 1,869,159,286,599.62/1,557,686.01 - Step 6: Final answer
x = 1,199,958.96
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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.