Finding the Fourth Proportional to 742,167.75, 1,024,193.48 and 402,636.00
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Solution
The fourth proportional to 742,167.75, 1,024,193.48 and 402,636.00 is: 555,638.75
Step by Step Solution
- Step 1: Write the proportion equation
742,167.75 : 1,024,193.48 = 402,636.00 : x - Step 2: Convert to fraction form
742,167.75/1,024,193.48 = 402,636.00/x - Step 3: Cross multiply
742,167.75x = 1,024,193.48 × 402,636.00 - Step 4: Simplify right side
742,167.75x = 412,377,160,159.38 - Step 5: Solve for x
x = 412,377,160,159.38/742,167.75 - Step 6: Final answer
x = 555,638.75
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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.