Finding the Fourth Proportional to 752,777.55, 1,128,792.71 and 272,986.20
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Solution
The fourth proportional to 752,777.55, 1,128,792.71 and 272,986.20 is: 409,343.81
Step by Step Solution
- Step 1: Write the proportion equation
752,777.55 : 1,128,792.71 = 272,986.20 : x - Step 2: Convert to fraction form
752,777.55/1,128,792.71 = 272,986.20/x - Step 3: Cross multiply
752,777.55x = 1,128,792.71 × 272,986.20 - Step 4: Simplify right side
752,777.55x = 308,144,833,173.07 - Step 5: Solve for x
x = 308,144,833,173.07/752,777.55 - Step 6: Final answer
x = 409,343.81
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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.