Finding the Fourth Proportional to 1,427,721.39, 2,138,726.23 and 858,788.53
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Solution
The fourth proportional to 1,427,721.39, 2,138,726.23 and 858,788.53 is: 1,286,464.96
Step by Step Solution
- Step 1: Write the proportion equation
1,427,721.39 : 2,138,726.23 = 858,788.53 : x - Step 2: Convert to fraction form
1,427,721.39/2,138,726.23 = 858,788.53/x - Step 3: Cross multiply
1,427,721.39x = 2,138,726.23 × 858,788.53 - Step 4: Simplify right side
1,427,721.39x = 1,836,713,547,640.36 - Step 5: Solve for x
x = 1,836,713,547,640.36/1,427,721.39 - Step 6: Final answer
x = 1,286,464.96
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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.