Finding the Fourth Proportional to 1,808,421.63, 2,497,693.09 and 1,190,986.87
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Solution
The fourth proportional to 1,808,421.63, 2,497,693.09 and 1,190,986.87 is: 1,644,925.95
Step by Step Solution
- Step 1: Write the proportion equation
1,808,421.63 : 2,497,693.09 = 1,190,986.87 : x - Step 2: Convert to fraction form
1,808,421.63/2,497,693.09 = 1,190,986.87/x - Step 3: Cross multiply
1,808,421.63x = 2,497,693.09 × 1,190,986.87 - Step 4: Simplify right side
1,808,421.63x = 2,974,719,669,524.79 - Step 5: Solve for x
x = 2,974,719,669,524.79/1,808,421.63 - Step 6: Final answer
x = 1,644,925.95
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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.