Finding the Fourth Proportional to 838,277.80, 1,257,416.70 and 305,621.80
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Solution
The fourth proportional to 838,277.80, 1,257,416.70 and 305,621.80 is: 458,432.70
Step by Step Solution
- Step 1: Write the proportion equation
838,277.80 : 1,257,416.70 = 305,621.80 : x - Step 2: Convert to fraction form
838,277.80/1,257,416.70 = 305,621.80/x - Step 3: Cross multiply
838,277.80x = 1,257,416.70 × 305,621.80 - Step 4: Simplify right side
838,277.80x = 384,293,955,204.06 - Step 5: Solve for x
x = 384,293,955,204.06/838,277.80 - Step 6: Final answer
x = 458,432.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.