Finding the Fourth Proportional to 780,023.12, 1,076,763.43 and 474,197.19
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Solution
The fourth proportional to 780,023.12, 1,076,763.43 and 474,197.19 is: 654,593.66
Step by Step Solution
- Step 1: Write the proportion equation
780,023.12 : 1,076,763.43 = 474,197.19 : x - Step 2: Convert to fraction form
780,023.12/1,076,763.43 = 474,197.19/x - Step 3: Cross multiply
780,023.12x = 1,076,763.43 × 474,197.19 - Step 4: Simplify right side
780,023.12x = 510,598,186,688.29 - Step 5: Solve for x
x = 510,598,186,688.29/780,023.12 - Step 6: Final answer
x = 654,593.66
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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.