Finding the Fourth Proportional to 839,450.79, 1,158,442.97 and 457,477.88
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Solution
The fourth proportional to 839,450.79, 1,158,442.97 and 457,477.88 is: 631,319.94
Step by Step Solution
- Step 1: Write the proportion equation
839,450.79 : 1,158,442.97 = 457,477.88 : x - Step 2: Convert to fraction form
839,450.79/1,158,442.97 = 457,477.88/x - Step 3: Cross multiply
839,450.79x = 1,158,442.97 × 457,477.88 - Step 4: Simplify right side
839,450.79x = 529,962,025,936.90 - Step 5: Solve for x
x = 529,962,025,936.90/839,450.79 - Step 6: Final answer
x = 631,319.94
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1.5x scale
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.