Finding the Fourth Proportional to 448,612.19, 619,292.14 and 276,560.90
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Solution
The fourth proportional to 448,612.19, 619,292.14 and 276,560.90 is: 381,781.85
Step by Step Solution
- Step 1: Write the proportion equation
448,612.19 : 619,292.14 = 276,560.90 : x - Step 2: Convert to fraction form
448,612.19/619,292.14 = 276,560.90/x - Step 3: Cross multiply
448,612.19x = 619,292.14 × 276,560.90 - Step 4: Simplify right side
448,612.19x = 171,271,990,135.81 - Step 5: Solve for x
x = 171,271,990,135.81/448,612.19 - Step 6: Final answer
x = 381,781.85
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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.