Finding the Fourth Proportional to 1,426,276.40, 2,138,896.20 and 716,068.40
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Solution
The fourth proportional to 1,426,276.40, 2,138,896.20 and 716,068.40 is: 1,073,842.33
Step by Step Solution
- Step 1: Write the proportion equation
1,426,276.40 : 2,138,896.20 = 716,068.40 : x - Step 2: Convert to fraction form
1,426,276.40/2,138,896.20 = 716,068.40/x - Step 3: Cross multiply
1,426,276.40x = 2,138,896.20 × 716,068.40 - Step 4: Simplify right side
1,426,276.40x = 1,531,595,979,700.08 - Step 5: Solve for x
x = 1,531,595,979,700.08/1,426,276.40 - Step 6: Final answer
x = 1,073,842.33
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.