Finding the Fourth Proportional to 936,920.07, 1,292,953.84 and 507,200.18
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Solution
The fourth proportional to 936,920.07, 1,292,953.84 and 507,200.18 is: 699,938.48
Step by Step Solution
- Step 1: Write the proportion equation
936,920.07 : 1,292,953.84 = 507,200.18 : x - Step 2: Convert to fraction form
936,920.07/1,292,953.84 = 507,200.18/x - Step 3: Cross multiply
936,920.07x = 1,292,953.84 × 507,200.18 - Step 4: Simplify right side
936,920.07x = 655,786,412,646.92 - Step 5: Solve for x
x = 655,786,412,646.92/936,920.07 - Step 6: Final answer
x = 699,938.48
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1.5x scale
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.