Finding the Fourth Proportional to 640,486.68, 883,875.12 and 350,098.68
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Solution
The fourth proportional to 640,486.68, 883,875.12 and 350,098.68 is: 483,138.09
Step by Step Solution
- Step 1: Write the proportion equation
640,486.68 : 883,875.12 = 350,098.68 : x - Step 2: Convert to fraction form
640,486.68/883,875.12 = 350,098.68/x - Step 3: Cross multiply
640,486.68x = 883,875.12 × 350,098.68 - Step 4: Simplify right side
640,486.68x = 309,443,512,796.84 - Step 5: Solve for x
x = 309,443,512,796.84/640,486.68 - Step 6: Final answer
x = 483,138.09
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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.