Finding the Fourth Proportional to 841,878.09, 1,263,315.35 and 309,772.79
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Solution
The fourth proportional to 841,878.09, 1,263,315.35 and 309,772.79 is: 464,842.50
Step by Step Solution
- Step 1: Write the proportion equation
841,878.09 : 1,263,315.35 = 309,772.79 : x - Step 2: Convert to fraction form
841,878.09/1,263,315.35 = 309,772.79/x - Step 3: Cross multiply
841,878.09x = 1,263,315.35 × 309,772.79 - Step 4: Simplify right side
841,878.09x = 391,340,719,814.61 - Step 5: Solve for x
x = 391,340,719,814.61/841,878.09 - Step 6: Final answer
x = 464,842.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.