Finding the Fourth Proportional to 987,621.29, 1,363,028.16 and 557,929.10
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Solution
The fourth proportional to 987,621.29, 1,363,028.16 and 557,929.10 is: 770,004.74
Step by Step Solution
- Step 1: Write the proportion equation
987,621.29 : 1,363,028.16 = 557,929.10 : x - Step 2: Convert to fraction form
987,621.29/1,363,028.16 = 557,929.10/x - Step 3: Cross multiply
987,621.29x = 1,363,028.16 × 557,929.10 - Step 4: Simplify right side
987,621.29x = 760,473,075,028.15 - Step 5: Solve for x
x = 760,473,075,028.15/987,621.29 - Step 6: Final answer
x = 770,004.74
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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.