Finding the Fourth Proportional to 938,538.48, 1,294,843.68 and 616,423.08
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Solution
The fourth proportional to 938,538.48, 1,294,843.68 and 616,423.08 is: 850,440.92
Step by Step Solution
- Step 1: Write the proportion equation
938,538.48 : 1,294,843.68 = 616,423.08 : x - Step 2: Convert to fraction form
938,538.48/1,294,843.68 = 616,423.08/x - Step 3: Cross multiply
938,538.48x = 1,294,843.68 × 616,423.08 - Step 4: Simplify right side
938,538.48x = 798,171,529,344.13 - Step 5: Solve for x
x = 798,171,529,344.13/938,538.48 - Step 6: Final answer
x = 850,440.92
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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.