Finding the Fourth Proportional to 1,121,275.42, 1,682,134.68 and 411,309.62
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Solution
The fourth proportional to 1,121,275.42, 1,682,134.68 and 411,309.62 is: 617,045.70
Step by Step Solution
- Step 1: Write the proportion equation
1,121,275.42 : 1,682,134.68 = 411,309.62 : x - Step 2: Convert to fraction form
1,121,275.42/1,682,134.68 = 411,309.62/x - Step 3: Cross multiply
1,121,275.42x = 1,682,134.68 × 411,309.62 - Step 4: Simplify right side
1,121,275.42x = 691,878,176,019.62 - Step 5: Solve for x
x = 691,878,176,019.62/1,121,275.42 - Step 6: Final answer
x = 617,045.70
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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.