Finding the Fourth Proportional to 478,422.39, 717,384.42 and 225,635.00
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Solution
The fourth proportional to 478,422.39, 717,384.42 and 225,635.00 is: 338,334.99
Step by Step Solution
- Step 1: Write the proportion equation
478,422.39 : 717,384.42 = 225,635.00 : x - Step 2: Convert to fraction form
478,422.39/717,384.42 = 225,635.00/x - Step 3: Cross multiply
478,422.39x = 717,384.42 × 225,635.00 - Step 4: Simplify right side
478,422.39x = 161,867,033,345.74 - Step 5: Solve for x
x = 161,867,033,345.74/478,422.39 - Step 6: Final answer
x = 338,334.99
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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.