Finding the Fourth Proportional to 564,272.68, 778,694.16 and 309,628.12
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Solution
The fourth proportional to 564,272.68, 778,694.16 and 309,628.12 is: 427,285.63
Step by Step Solution
- Step 1: Write the proportion equation
564,272.68 : 778,694.16 = 309,628.12 : x - Step 2: Convert to fraction form
564,272.68/778,694.16 = 309,628.12/x - Step 3: Cross multiply
564,272.68x = 778,694.16 × 309,628.12 - Step 4: Simplify right side
564,272.68x = 241,105,608,815.78 - Step 5: Solve for x
x = 241,105,608,815.78/564,272.68 - Step 6: Final answer
x = 427,285.63
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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.