Finding the Fourth Proportional to 684,426.24, 1,026,114.48 and 418,312.08
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Solution
The fourth proportional to 684,426.24, 1,026,114.48 and 418,312.08 is: 627,147.32
Step by Step Solution
- Step 1: Write the proportion equation
684,426.24 : 1,026,114.48 = 418,312.08 : x - Step 2: Convert to fraction form
684,426.24/1,026,114.48 = 418,312.08/x - Step 3: Cross multiply
684,426.24x = 1,026,114.48 × 418,312.08 - Step 4: Simplify right side
684,426.24x = 429,236,082,446.92 - Step 5: Solve for x
x = 429,236,082,446.92/684,426.24 - Step 6: Final answer
x = 627,147.32
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1.5x scale
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.