Finding the Fourth Proportional to 1,281,194.11, 1,768,318.19 and 1,066,124.53
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Solution
The fourth proportional to 1,281,194.11, 1,768,318.19 and 1,066,124.53 is: 1,471,476.79
Step by Step Solution
- Step 1: Write the proportion equation
1,281,194.11 : 1,768,318.19 = 1,066,124.53 : x - Step 2: Convert to fraction form
1,281,194.11/1,768,318.19 = 1,066,124.53/x - Step 3: Cross multiply
1,281,194.11x = 1,768,318.19 × 1,066,124.53 - Step 4: Simplify right side
1,281,194.11x = 1,885,247,399,204.20 - Step 5: Solve for x
x = 1,885,247,399,204.20/1,281,194.11 - Step 6: Final answer
x = 1,471,476.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.