Finding the Fourth Proportional to 840,261.21, 1,260,952.20 and 435,826.19
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Solution
The fourth proportional to 840,261.21, 1,260,952.20 and 435,826.19 is: 654,029.94
Step by Step Solution
- Step 1: Write the proportion equation
840,261.21 : 1,260,952.20 = 435,826.19 : x - Step 2: Convert to fraction form
840,261.21/1,260,952.20 = 435,826.19/x - Step 3: Cross multiply
840,261.21x = 1,260,952.20 × 435,826.19 - Step 4: Simplify right side
840,261.21x = 549,555,986,793.36 - Step 5: Solve for x
x = 549,555,986,793.36/840,261.21 - Step 6: Final answer
x = 654,029.94
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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.