Finding the Fourth Proportional to 742,371.57, 1,024,475.49 and 402,839.82
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Solution
The fourth proportional to 742,371.57, 1,024,475.49 and 402,839.82 is: 555,920.43
Step by Step Solution
- Step 1: Write the proportion equation
742,371.57 : 1,024,475.49 = 402,839.82 : x - Step 2: Convert to fraction form
742,371.57/1,024,475.49 = 402,839.82/x - Step 3: Cross multiply
742,371.57x = 1,024,475.49 × 402,839.82 - Step 4: Simplify right side
742,371.57x = 412,699,521,986.01 - Step 5: Solve for x
x = 412,699,521,986.01/742,371.57 - Step 6: Final answer
x = 555,920.43
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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.