Finding the Fourth Proportional to 875,468.12, 1,208,249.18 and 488,344.52
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Solution
The fourth proportional to 875,468.12, 1,208,249.18 and 488,344.52 is: 673,972.99
Step by Step Solution
- Step 1: Write the proportion equation
875,468.12 : 1,208,249.18 = 488,344.52 : x - Step 2: Convert to fraction form
875,468.12/1,208,249.18 = 488,344.52/x - Step 3: Cross multiply
875,468.12x = 1,208,249.18 × 488,344.52 - Step 4: Simplify right side
875,468.12x = 590,041,865,847.49 - Step 5: Solve for x
x = 590,041,865,847.49/875,468.12 - Step 6: Final answer
x = 673,972.99
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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.