Finding the Fourth Proportional to 564,274.68, 778,696.92 and 309,630.12
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Solution
The fourth proportional to 564,274.68, 778,696.92 and 309,630.12 is: 427,288.39
Step by Step Solution
- Step 1: Write the proportion equation
564,274.68 : 778,696.92 = 309,630.12 : x - Step 2: Convert to fraction form
564,274.68/778,696.92 = 309,630.12/x - Step 3: Cross multiply
564,274.68x = 778,696.92 × 309,630.12 - Step 4: Simplify right side
564,274.68x = 241,108,020,783.23 - Step 5: Solve for x
x = 241,108,020,783.23/564,274.68 - Step 6: Final answer
x = 427,288.39
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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.