Finding the Fourth Proportional to 946,429.12, 1,305,872.68 and 602,140.76
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Solution
The fourth proportional to 946,429.12, 1,305,872.68 and 602,140.76 is: 830,827.32
Step by Step Solution
- Step 1: Write the proportion equation
946,429.12 : 1,305,872.68 = 602,140.76 : x - Step 2: Convert to fraction form
946,429.12/1,305,872.68 = 602,140.76/x - Step 3: Cross multiply
946,429.12x = 1,305,872.68 × 602,140.76 - Step 4: Simplify right side
946,429.12x = 786,319,167,998.44 - Step 5: Solve for x
x = 786,319,167,998.44/946,429.12 - Step 6: Final answer
x = 830,827.32
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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.