Finding the Fourth Proportional to 777,430.36, 1,072,487.16 and 454,940.80
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Solution
The fourth proportional to 777,430.36, 1,072,487.16 and 454,940.80 is: 627,603.70
Step by Step Solution
- Step 1: Write the proportion equation
777,430.36 : 1,072,487.16 = 454,940.80 : x - Step 2: Convert to fraction form
777,430.36/1,072,487.16 = 454,940.80/x - Step 3: Cross multiply
777,430.36x = 1,072,487.16 × 454,940.80 - Step 4: Simplify right side
777,430.36x = 487,918,166,560.13 - Step 5: Solve for x
x = 487,918,166,560.13/777,430.36 - Step 6: Final answer
x = 627,603.70
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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.