Finding the Fourth Proportional to 2,781,678.51, 4,173,117.12 and 862,551.09
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Solution
The fourth proportional to 2,781,678.51, 4,173,117.12 and 862,551.09 is: 1,294,012.48
Step by Step Solution
- Step 1: Write the proportion equation
2,781,678.51 : 4,173,117.12 = 862,551.09 : x - Step 2: Convert to fraction form
2,781,678.51/4,173,117.12 = 862,551.09/x - Step 3: Cross multiply
2,781,678.51x = 4,173,117.12 × 862,551.09 - Step 4: Simplify right side
2,781,678.51x = 3,599,526,720,553.66 - Step 5: Solve for x
x = 3,599,526,720,553.66/2,781,678.51 - Step 6: Final answer
x = 1,294,012.48
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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.