Finding the Fourth Proportional to 640,260.36, 960,390.57 and 219,539.88
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Solution
The fourth proportional to 640,260.36, 960,390.57 and 219,539.88 is: 329,309.83
Step by Step Solution
- Step 1: Write the proportion equation
640,260.36 : 960,390.57 = 219,539.88 : x - Step 2: Convert to fraction form
640,260.36/960,390.57 = 219,539.88/x - Step 3: Cross multiply
640,260.36x = 960,390.57 × 219,539.88 - Step 4: Simplify right side
640,260.36x = 210,844,030,490.93 - Step 5: Solve for x
x = 210,844,030,490.93/640,260.36 - Step 6: Final answer
x = 329,309.83
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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.