Finding the Fourth Proportional to 1,281,470.07, 1,921,613.47 and 471,651.08
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Solution
The fourth proportional to 1,281,470.07, 1,921,613.47 and 471,651.08 is: 707,258.86
Step by Step Solution
- Step 1: Write the proportion equation
1,281,470.07 : 1,921,613.47 = 471,651.08 : x - Step 2: Convert to fraction form
1,281,470.07/1,921,613.47 = 471,651.08/x - Step 3: Cross multiply
1,281,470.07x = 1,921,613.47 × 471,651.08 - Step 4: Simplify right side
1,281,470.07x = 906,331,065,738.43 - Step 5: Solve for x
x = 906,331,065,738.43/1,281,470.07 - Step 6: Final answer
x = 707,258.86
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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.