Finding the Fourth Proportional to 640,497.18, 883,889.64 and 350,109.22
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Solution
The fourth proportional to 640,497.18, 883,889.64 and 350,109.22 is: 483,152.65
Step by Step Solution
- Step 1: Write the proportion equation
640,497.18 : 883,889.64 = 350,109.22 : x - Step 2: Convert to fraction form
640,497.18/883,889.64 = 350,109.22/x - Step 3: Cross multiply
640,497.18x = 883,889.64 × 350,109.22 - Step 4: Simplify right side
640,497.18x = 309,457,912,426.48 - Step 5: Solve for x
x = 309,457,912,426.48/640,497.18 - Step 6: Final answer
x = 483,152.65
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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.