Finding the Fourth Proportional to 687,058.88, 948,151.08 and 415,088.96
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Solution
The fourth proportional to 687,058.88, 948,151.08 and 415,088.96 is: 572,828.70
Step by Step Solution
- Step 1: Write the proportion equation
687,058.88 : 948,151.08 = 415,088.96 : x - Step 2: Convert to fraction form
687,058.88/948,151.08 = 415,088.96/x - Step 3: Cross multiply
687,058.88x = 948,151.08 × 415,088.96 - Step 4: Simplify right side
687,058.88x = 393,567,045,720.08 - Step 5: Solve for x
x = 393,567,045,720.08/687,058.88 - Step 6: Final answer
x = 572,828.70
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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.