Finding the Fourth Proportional to 421,466.16, 631,533.40 and 342,193.08
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Solution
The fourth proportional to 421,466.16, 631,533.40 and 342,193.08 is: 512,749.02
Step by Step Solution
- Step 1: Write the proportion equation
421,466.16 : 631,533.40 = 342,193.08 : x - Step 2: Convert to fraction form
421,466.16/631,533.40 = 342,193.08/x - Step 3: Cross multiply
421,466.16x = 631,533.40 × 342,193.08 - Step 4: Simplify right side
421,466.16x = 216,106,359,268.87 - Step 5: Solve for x
x = 216,106,359,268.87/421,466.16 - Step 6: Final answer
x = 512,749.02
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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.