Finding the Fourth Proportional to 674,257.16, 930,501.78 and 387,777.08
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Solution
The fourth proportional to 674,257.16, 930,501.78 and 387,777.08 is: 535,147.84
Step by Step Solution
- Step 1: Write the proportion equation
674,257.16 : 930,501.78 = 387,777.08 : x - Step 2: Convert to fraction form
674,257.16/930,501.78 = 387,777.08/x - Step 3: Cross multiply
674,257.16x = 930,501.78 × 387,777.08 - Step 4: Simplify right side
674,257.16x = 360,827,263,183.20 - Step 5: Solve for x
x = 360,827,263,183.20/674,257.16 - Step 6: Final answer
x = 535,147.84
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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.