Finding the Fourth Proportional to 639,215.94, 882,136.74 and 348,846.18
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Solution
The fourth proportional to 639,215.94, 882,136.74 and 348,846.18 is: 481,417.95
Step by Step Solution
- Step 1: Write the proportion equation
639,215.94 : 882,136.74 = 348,846.18 : x - Step 2: Convert to fraction form
639,215.94/882,136.74 = 348,846.18/x - Step 3: Cross multiply
639,215.94x = 882,136.74 × 348,846.18 - Step 4: Simplify right side
639,215.94x = 307,730,031,674.19 - Step 5: Solve for x
x = 307,730,031,674.19/639,215.94 - Step 6: Final answer
x = 481,417.95
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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.