Finding the Fourth Proportional to 628,827.68, 867,787.44 and 342,349.76
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Solution
The fourth proportional to 628,827.68, 867,787.44 and 342,349.76 is: 472,445.52
Step by Step Solution
- Step 1: Write the proportion equation
628,827.68 : 867,787.44 = 342,349.76 : x - Step 2: Convert to fraction form
628,827.68/867,787.44 = 342,349.76/x - Step 3: Cross multiply
628,827.68x = 867,787.44 × 342,349.76 - Step 4: Simplify right side
628,827.68x = 297,086,821,815.01 - Step 5: Solve for x
x = 297,086,821,815.01/628,827.68 - Step 6: Final answer
x = 472,445.52
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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.