Finding the Fourth Proportional to 742,427.19, 1,024,549.49 and 402,895.44
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Solution
The fourth proportional to 742,427.19, 1,024,549.49 and 402,895.44 is: 555,995.69
Step by Step Solution
- Step 1: Write the proportion equation
742,427.19 : 1,024,549.49 = 402,895.44 : x - Step 2: Convert to fraction form
742,427.19/1,024,549.49 = 402,895.44/x - Step 3: Cross multiply
742,427.19x = 1,024,549.49 × 402,895.44 - Step 4: Simplify right side
742,427.19x = 412,786,318,582.56 - Step 5: Solve for x
x = 412,786,318,582.56/742,427.19 - Step 6: Final answer
x = 555,995.69
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1.5x scale
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.