Finding the Fourth Proportional to 987,159.69, 1,480,433.36 and 355,991.49
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Solution
The fourth proportional to 987,159.69, 1,480,433.36 and 355,991.49 is: 533,876.82
Step by Step Solution
- Step 1: Write the proportion equation
987,159.69 : 1,480,433.36 = 355,991.49 : x - Step 2: Convert to fraction form
987,159.69/1,480,433.36 = 355,991.49/x - Step 3: Cross multiply
987,159.69x = 1,480,433.36 × 355,991.49 - Step 4: Simplify right side
987,159.69x = 527,021,675,892.15 - Step 5: Solve for x
x = 527,021,675,892.15/987,159.69 - Step 6: Final answer
x = 533,876.82
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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.