Finding the Fourth Proportional to 697,991.48, 963,251.62 and 387,907.12
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Solution
The fourth proportional to 697,991.48, 963,251.62 and 387,907.12 is: 535,324.82
Step by Step Solution
- Step 1: Write the proportion equation
697,991.48 : 963,251.62 = 387,907.12 : x - Step 2: Convert to fraction form
697,991.48/963,251.62 = 387,907.12/x - Step 3: Cross multiply
697,991.48x = 963,251.62 × 387,907.12 - Step 4: Simplify right side
697,991.48x = 373,652,161,749.53 - Step 5: Solve for x
x = 373,652,161,749.53/697,991.48 - Step 6: Final answer
x = 535,324.82
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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.