Finding the Fourth Proportional to 493,075.68, 680,486.04 and 278,224.80
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Solution
The fourth proportional to 493,075.68, 680,486.04 and 278,224.80 is: 383,973.70
Step by Step Solution
- Step 1: Write the proportion equation
493,075.68 : 680,486.04 = 278,224.80 : x - Step 2: Convert to fraction form
493,075.68/680,486.04 = 278,224.80/x - Step 3: Cross multiply
493,075.68x = 680,486.04 × 278,224.80 - Step 4: Simplify right side
493,075.68x = 189,328,092,381.79 - Step 5: Solve for x
x = 189,328,092,381.79/493,075.68 - Step 6: Final answer
x = 383,973.70
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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.