Finding the Fourth Proportional to 1,126,419.10, 1,689,628.65 and 327,726.70
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Solution
The fourth proportional to 1,126,419.10, 1,689,628.65 and 327,726.70 is: 491,590.05
Step by Step Solution
- Step 1: Write the proportion equation
1,126,419.10 : 1,689,628.65 = 327,726.70 : x - Step 2: Convert to fraction form
1,126,419.10/1,689,628.65 = 327,726.70/x - Step 3: Cross multiply
1,126,419.10x = 1,689,628.65 × 327,726.70 - Step 4: Simplify right side
1,126,419.10x = 553,736,421,689.96 - Step 5: Solve for x
x = 553,736,421,689.96/1,126,419.10 - Step 6: Final answer
x = 491,590.05
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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.