Finding the Fourth Proportional to 740,715.97, 1,022,271.12 and 418,446.83
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Solution
The fourth proportional to 740,715.97, 1,022,271.12 and 418,446.83 is: 577,503.55
Step by Step Solution
- Step 1: Write the proportion equation
740,715.97 : 1,022,271.12 = 418,446.83 : x - Step 2: Convert to fraction form
740,715.97/1,022,271.12 = 418,446.83/x - Step 3: Cross multiply
740,715.97x = 1,022,271.12 × 418,446.83 - Step 4: Simplify right side
740,715.97x = 427,766,104,703.34 - Step 5: Solve for x
x = 427,766,104,703.34/740,715.97 - Step 6: Final answer
x = 577,503.55
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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.