Finding the Fourth Proportional to 717,368.16, 989,993.43 and 395,102.79
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Solution
The fourth proportional to 717,368.16, 989,993.43 and 395,102.79 is: 545,255.82
Step by Step Solution
- Step 1: Write the proportion equation
717,368.16 : 989,993.43 = 395,102.79 : x - Step 2: Convert to fraction form
717,368.16/989,993.43 = 395,102.79/x - Step 3: Cross multiply
717,368.16x = 989,993.43 × 395,102.79 - Step 4: Simplify right side
717,368.16x = 391,149,166,274.67 - Step 5: Solve for x
x = 391,149,166,274.67/717,368.16 - Step 6: Final answer
x = 545,255.82
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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.