Finding the Fourth Proportional to 722,864.26, 997,578.41 and 436,328.38
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Solution
The fourth proportional to 722,864.26, 997,578.41 and 436,328.38 is: 602,148.70
Step by Step Solution
- Step 1: Write the proportion equation
722,864.26 : 997,578.41 = 436,328.38 : x - Step 2: Convert to fraction form
722,864.26/997,578.41 = 436,328.38/x - Step 3: Cross multiply
722,864.26x = 997,578.41 × 436,328.38 - Step 4: Simplify right side
722,864.26x = 435,271,771,558.28 - Step 5: Solve for x
x = 435,271,771,558.28/722,864.26 - Step 6: Final answer
x = 602,148.70
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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.