Finding the Fourth Proportional to 2,107,580.70, 2,908,531.86 and 1,291,626.75
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Solution
The fourth proportional to 2,107,580.70, 2,908,531.86 and 1,291,626.75 is: 1,782,488.12
Step by Step Solution
- Step 1: Write the proportion equation
2,107,580.70 : 2,908,531.86 = 1,291,626.75 : x - Step 2: Convert to fraction form
2,107,580.70/2,908,531.86 = 1,291,626.75/x - Step 3: Cross multiply
2,107,580.70x = 2,908,531.86 × 1,291,626.75 - Step 4: Simplify right side
2,107,580.70x = 3,756,737,553,603.26 - Step 5: Solve for x
x = 3,756,737,553,603.26/2,107,580.70 - Step 6: Final answer
x = 1,782,488.12
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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.