Finding the Fourth Proportional to 936,378.24, 1,292,198.40 and 506,659.20
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Solution
The fourth proportional to 936,378.24, 1,292,198.40 and 506,659.20 is: 699,187.76
Step by Step Solution
- Step 1: Write the proportion equation
936,378.24 : 1,292,198.40 = 506,659.20 : x - Step 2: Convert to fraction form
936,378.24/1,292,198.40 = 506,659.20/x - Step 3: Cross multiply
936,378.24x = 1,292,198.40 × 506,659.20 - Step 4: Simplify right side
936,378.24x = 654,704,207,585.28 - Step 5: Solve for x
x = 654,704,207,585.28/936,378.24 - Step 6: Final answer
x = 699,187.76
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.