Finding the Fourth Proportional to 497,454.84, 686,292.82 and 306,136.08
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Solution
The fourth proportional to 497,454.84, 686,292.82 and 306,136.08 is: 422,347.87
Step by Step Solution
- Step 1: Write the proportion equation
497,454.84 : 686,292.82 = 306,136.08 : x - Step 2: Convert to fraction form
497,454.84/686,292.82 = 306,136.08/x - Step 3: Cross multiply
497,454.84x = 686,292.82 × 306,136.08 - Step 4: Simplify right side
497,454.84x = 210,098,992,881.61 - Step 5: Solve for x
x = 210,098,992,881.61/497,454.84 - Step 6: Final answer
x = 422,347.87
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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.