Finding the Fourth Proportional to 936,342.84, 1,292,143.92 and 506,613.54
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Solution
The fourth proportional to 936,342.84, 1,292,143.92 and 506,613.54 is: 699,121.71
Step by Step Solution
- Step 1: Write the proportion equation
936,342.84 : 1,292,143.92 = 506,613.54 : x - Step 2: Convert to fraction form
936,342.84/1,292,143.92 = 506,613.54/x - Step 3: Cross multiply
936,342.84x = 1,292,143.92 × 506,613.54 - Step 4: Simplify right side
936,342.84x = 654,617,605,500.68 - Step 5: Solve for x
x = 654,617,605,500.68/936,342.84 - Step 6: Final answer
x = 699,121.71
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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.