Finding the Fourth Proportional to 1,226,592.99, 1,692,685.40 and 682,720.11
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Solution
The fourth proportional to 1,226,592.99, 1,692,685.40 and 682,720.11 is: 942,146.55
Step by Step Solution
- Step 1: Write the proportion equation
1,226,592.99 : 1,692,685.40 = 682,720.11 : x - Step 2: Convert to fraction form
1,226,592.99/1,692,685.40 = 682,720.11/x - Step 3: Cross multiply
1,226,592.99x = 1,692,685.40 × 682,720.11 - Step 4: Simplify right side
1,226,592.99x = 1,155,630,359,069.79 - Step 5: Solve for x
x = 1,155,630,359,069.79/1,226,592.99 - Step 6: Final answer
x = 942,146.55
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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.