Finding the Fourth Proportional to 1,721,811.34, 2,375,457.87 and 1,076,986.54
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Solution
The fourth proportional to 1,721,811.34, 2,375,457.87 and 1,076,986.54 is: 1,485,839.99
Step by Step Solution
- Step 1: Write the proportion equation
1,721,811.34 : 2,375,457.87 = 1,076,986.54 : x - Step 2: Convert to fraction form
1,721,811.34/2,375,457.87 = 1,076,986.54/x - Step 3: Cross multiply
1,721,811.34x = 2,375,457.87 × 1,076,986.54 - Step 4: Simplify right side
1,721,811.34x = 2,558,336,152,327.07 - Step 5: Solve for x
x = 2,558,336,152,327.07/1,721,811.34 - Step 6: Final answer
x = 1,485,839.99
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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.