Finding the Fourth Proportional to 1,421,326.50, 2,132,133.12 and 461,742.18
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Solution
The fourth proportional to 1,421,326.50, 2,132,133.12 and 461,742.18 is: 692,659.85
Step by Step Solution
- Step 1: Write the proportion equation
1,421,326.50 : 2,132,133.12 = 461,742.18 : x - Step 2: Convert to fraction form
1,421,326.50/2,132,133.12 = 461,742.18/x - Step 3: Cross multiply
1,421,326.50x = 2,132,133.12 × 461,742.18 - Step 4: Simplify right side
1,421,326.50x = 984,495,794,879.00 - Step 5: Solve for x
x = 984,495,794,879.00/1,421,326.50 - Step 6: Final answer
x = 692,659.85
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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.