Finding the Fourth Proportional to 2,187,656.86, 3,018,967.02 and 1,207,596.44
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Solution
The fourth proportional to 2,187,656.86, 3,018,967.02 and 1,207,596.44 is: 1,666,483.39
Step by Step Solution
- Step 1: Write the proportion equation
2,187,656.86 : 3,018,967.02 = 1,207,596.44 : x - Step 2: Convert to fraction form
2,187,656.86/3,018,967.02 = 1,207,596.44/x - Step 3: Cross multiply
2,187,656.86x = 3,018,967.02 × 1,207,596.44 - Step 4: Simplify right side
2,187,656.86x = 3,645,693,825,829.41 - Step 5: Solve for x
x = 3,645,693,825,829.41/2,187,656.86 - Step 6: Final answer
x = 1,666,483.39
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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.