Finding the Fourth Proportional to 1,979,207.28, 2,965,417.68 and 1,329,565.96
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Solution
The fourth proportional to 1,979,207.28, 2,965,417.68 and 1,329,565.96 is: 1,992,069.47
Step by Step Solution
- Step 1: Write the proportion equation
1,979,207.28 : 2,965,417.68 = 1,329,565.96 : x - Step 2: Convert to fraction form
1,979,207.28/2,965,417.68 = 1,329,565.96/x - Step 3: Cross multiply
1,979,207.28x = 2,965,417.68 × 1,329,565.96 - Step 4: Simplify right side
1,979,207.28x = 3,942,718,404,510.17 - Step 5: Solve for x
x = 3,942,718,404,510.17/1,979,207.28 - Step 6: Final answer
x = 1,992,069.47
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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.