Finding the Fourth Proportional to 1,286,372.16, 1,774,958.76 and 742,309.41
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Solution
The fourth proportional to 1,286,372.16, 1,774,958.76 and 742,309.41 is: 1,024,251.48
Step by Step Solution
- Step 1: Write the proportion equation
1,286,372.16 : 1,774,958.76 = 742,309.41 : x - Step 2: Convert to fraction form
1,286,372.16/1,774,958.76 = 742,309.41/x - Step 3: Cross multiply
1,286,372.16x = 1,774,958.76 × 742,309.41 - Step 4: Simplify right side
1,286,372.16x = 1,317,568,589,909.93 - Step 5: Solve for x
x = 1,317,568,589,909.93/1,286,372.16 - Step 6: Final answer
x = 1,024,251.48
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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.