Finding the Fourth Proportional to 821,768.72, 1,134,153.45 and 472,901.94
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Solution
The fourth proportional to 821,768.72, 1,134,153.45 and 472,901.94 is: 652,669.49
Step by Step Solution
- Step 1: Write the proportion equation
821,768.72 : 1,134,153.45 = 472,901.94 : x - Step 2: Convert to fraction form
821,768.72/1,134,153.45 = 472,901.94/x - Step 3: Cross multiply
821,768.72x = 1,134,153.45 × 472,901.94 - Step 4: Simplify right side
821,768.72x = 536,343,366,762.69 - Step 5: Solve for x
x = 536,343,366,762.69/821,768.72 - Step 6: Final answer
x = 652,669.49
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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.