Finding the Fourth Proportional to 640,054.59, 883,242.84 and 353,519.31
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Solution
The fourth proportional to 640,054.59, 883,242.84 and 353,519.31 is: 487,838.70
Step by Step Solution
- Step 1: Write the proportion equation
640,054.59 : 883,242.84 = 353,519.31 : x - Step 2: Convert to fraction form
640,054.59/883,242.84 = 353,519.31/x - Step 3: Cross multiply
640,054.59x = 883,242.84 × 353,519.31 - Step 4: Simplify right side
640,054.59x = 312,243,399,359.24 - Step 5: Solve for x
x = 312,243,399,359.24/640,054.59 - Step 6: Final answer
x = 487,838.70
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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.