Finding the Fourth Proportional to 887,138.60, 1,330,707.90 and 413,871.80
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Solution
The fourth proportional to 887,138.60, 1,330,707.90 and 413,871.80 is: 620,807.70
Step by Step Solution
- Step 1: Write the proportion equation
887,138.60 : 1,330,707.90 = 413,871.80 : x - Step 2: Convert to fraction form
887,138.60/1,330,707.90 = 413,871.80/x - Step 3: Cross multiply
887,138.60x = 1,330,707.90 × 413,871.80 - Step 4: Simplify right side
887,138.60x = 550,742,473,847.22 - Step 5: Solve for x
x = 550,742,473,847.22/887,138.60 - Step 6: Final answer
x = 620,807.70
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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.