Finding the Fourth Proportional to 939,461.18, 1,296,792.72 and 557,487.98
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Solution
The fourth proportional to 939,461.18, 1,296,792.72 and 557,487.98 is: 769,532.97
Step by Step Solution
- Step 1: Write the proportion equation
939,461.18 : 1,296,792.72 = 557,487.98 : x - Step 2: Convert to fraction form
939,461.18/1,296,792.72 = 557,487.98/x - Step 3: Cross multiply
939,461.18x = 1,296,792.72 × 557,487.98 - Step 4: Simplify right side
939,461.18x = 722,946,353,951.51 - Step 5: Solve for x
x = 722,946,353,951.51/939,461.18 - Step 6: Final answer
x = 769,532.97
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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.