Finding the Fourth Proportional to 717,504.36, 990,119.44 and 395,207.52
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Solution
The fourth proportional to 717,504.36, 990,119.44 and 395,207.52 is: 545,366.23
Step by Step Solution
- Step 1: Write the proportion equation
717,504.36 : 990,119.44 = 395,207.52 : x - Step 2: Convert to fraction form
717,504.36/990,119.44 = 395,207.52/x - Step 3: Cross multiply
717,504.36x = 990,119.44 × 395,207.52 - Step 4: Simplify right side
717,504.36x = 391,302,648,386.19 - Step 5: Solve for x
x = 391,302,648,386.19/717,504.36 - Step 6: Final answer
x = 545,366.23
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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.