Finding the Fourth Proportional to 886,421.19, 1,329,437.34 and 255,197.91
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Solution
The fourth proportional to 886,421.19, 1,329,437.34 and 255,197.91 is: 382,740.88
Step by Step Solution
- Step 1: Write the proportion equation
886,421.19 : 1,329,437.34 = 255,197.91 : x - Step 2: Convert to fraction form
886,421.19/1,329,437.34 = 255,197.91/x - Step 3: Cross multiply
886,421.19x = 1,329,437.34 × 255,197.91 - Step 4: Simplify right side
886,421.19x = 339,269,630,643.96 - Step 5: Solve for x
x = 339,269,630,643.96/886,421.19 - Step 6: Final answer
x = 382,740.88
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1.5x scale
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.