Finding the Fourth Proportional to 691,058.19, 1,036,639.77 and 235,507.85
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Solution
The fourth proportional to 691,058.19, 1,036,639.77 and 235,507.85 is: 353,279.66
Step by Step Solution
- Step 1: Write the proportion equation
691,058.19 : 1,036,639.77 = 235,507.85 : x - Step 2: Convert to fraction form
691,058.19/1,036,639.77 = 235,507.85/x - Step 3: Cross multiply
691,058.19x = 1,036,639.77 × 235,507.85 - Step 4: Simplify right side
691,058.19x = 244,136,803,457.20 - Step 5: Solve for x
x = 244,136,803,457.20/691,058.19 - Step 6: Final answer
x = 353,279.66
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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.