Finding the Fourth Proportional to 688,058.72, 949,523.36 and 382,135.84
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Solution
The fourth proportional to 688,058.72, 949,523.36 and 382,135.84 is: 527,348.75
Step by Step Solution
- Step 1: Write the proportion equation
688,058.72 : 949,523.36 = 382,135.84 : x - Step 2: Convert to fraction form
688,058.72/949,523.36 = 382,135.84/x - Step 3: Cross multiply
688,058.72x = 949,523.36 × 382,135.84 - Step 4: Simplify right side
688,058.72x = 362,846,906,773.22 - Step 5: Solve for x
x = 362,846,906,773.22/688,058.72 - Step 6: Final answer
x = 527,348.75
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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.