Finding the Fourth Proportional to 777,356.37, 1,163,400.93 and 478,026.54
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Solution
The fourth proportional to 777,356.37, 1,163,400.93 and 478,026.54 is: 715,420.29
Step by Step Solution
- Step 1: Write the proportion equation
777,356.37 : 1,163,400.93 = 478,026.54 : x - Step 2: Convert to fraction form
777,356.37/1,163,400.93 = 478,026.54/x - Step 3: Cross multiply
777,356.37x = 1,163,400.93 × 478,026.54 - Step 4: Simplify right side
777,356.37x = 556,136,521,200.68 - Step 5: Solve for x
x = 556,136,521,200.68/777,356.37 - Step 6: Final answer
x = 715,420.29
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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.