Finding the Fourth Proportional to 1,515,760.74, 2,091,253.05 and 1,080,246.69
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Solution
The fourth proportional to 1,515,760.74, 2,091,253.05 and 1,080,246.69 is: 1,490,386.40
Step by Step Solution
- Step 1: Write the proportion equation
1,515,760.74 : 2,091,253.05 = 1,080,246.69 : x - Step 2: Convert to fraction form
1,515,760.74/2,091,253.05 = 1,080,246.69/x - Step 3: Cross multiply
1,515,760.74x = 2,091,253.05 × 1,080,246.69 - Step 4: Simplify right side
1,515,760.74x = 2,259,069,185,214.90 - Step 5: Solve for x
x = 2,259,069,185,214.90/1,515,760.74 - Step 6: Final answer
x = 1,490,386.40
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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.