Finding the Fourth Proportional to 640,615.49, 961,123.14 and 191,354.09
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Solution
The fourth proportional to 640,615.49, 961,123.14 and 191,354.09 is: 287,090.84
Step by Step Solution
- Step 1: Write the proportion equation
640,615.49 : 961,123.14 = 191,354.09 : x - Step 2: Convert to fraction form
640,615.49/961,123.14 = 191,354.09/x - Step 3: Cross multiply
640,615.49x = 961,123.14 × 191,354.09 - Step 4: Simplify right side
640,615.49x = 183,914,842,631.24 - Step 5: Solve for x
x = 183,914,842,631.24/640,615.49 - Step 6: Final answer
x = 287,090.84
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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.