Finding the Fourth Proportional to 1,288,718.92, 1,777,715.40 and 1,197,488.08
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Solution
The fourth proportional to 1,288,718.92, 1,777,715.40 and 1,197,488.08 is: 1,651,867.58
Step by Step Solution
- Step 1: Write the proportion equation
1,288,718.92 : 1,777,715.40 = 1,197,488.08 : x - Step 2: Convert to fraction form
1,288,718.92/1,777,715.40 = 1,197,488.08/x - Step 3: Cross multiply
1,288,718.92x = 1,777,715.40 × 1,197,488.08 - Step 4: Simplify right side
1,288,718.92x = 2,128,793,001,132.43 - Step 5: Solve for x
x = 2,128,793,001,132.43/1,288,718.92 - Step 6: Final answer
x = 1,651,867.58
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.