Finding the Fourth Proportional to 640,984.12, 961,195.68 and 304,120.84
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Solution
The fourth proportional to 640,984.12, 961,195.68 and 304,120.84 is: 456,048.17
Step by Step Solution
- Step 1: Write the proportion equation
640,984.12 : 961,195.68 = 304,120.84 : x - Step 2: Convert to fraction form
640,984.12/961,195.68 = 304,120.84/x - Step 3: Cross multiply
640,984.12x = 961,195.68 × 304,120.84 - Step 4: Simplify right side
640,984.12x = 292,319,637,605.97 - Step 5: Solve for x
x = 292,319,637,605.97/640,984.12 - Step 6: Final answer
x = 456,048.17
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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.