Finding the Fourth Proportional to 742,169.84, 1,024,194.76 and 402,638
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Solution
The fourth proportional to 742,169.84, 1,024,194.76 and 402,638 is: 555,640.65
Step by Step Solution
- Step 1: Write the proportion equation
742,169.84 : 1,024,194.76 = 402,638 : x - Step 2: Convert to fraction form
742,169.84/1,024,194.76 = 402,638/x - Step 3: Cross multiply
742,169.84x = 1,024,194.76 × 402,638 - Step 4: Simplify right side
742,169.84x = 412,379,729,776.88 - Step 5: Solve for x
x = 412,379,729,776.88/742,169.84 - Step 6: Final answer
x = 555,640.65
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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.