Finding the Fourth Proportional to 2,121,720.91, 2,928,537.99 and 1,306,607.99
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Solution
The fourth proportional to 2,121,720.91, 2,928,537.99 and 1,306,607.99 is: 1,803,465.81
Step by Step Solution
- Step 1: Write the proportion equation
2,121,720.91 : 2,928,537.99 = 1,306,607.99 : x - Step 2: Convert to fraction form
2,121,720.91/2,928,537.99 = 1,306,607.99/x - Step 3: Cross multiply
2,121,720.91x = 2,928,537.99 × 1,306,607.99 - Step 4: Simplify right side
2,121,720.91x = 3,826,451,122,109.85 - Step 5: Solve for x
x = 3,826,451,122,109.85/2,121,720.91 - Step 6: Final answer
x = 1,803,465.81
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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.