Finding the Fourth Proportional to 1,157,147.29, 1,596,827.95 and 640,880.70
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Solution
The fourth proportional to 1,157,147.29, 1,596,827.95 and 640,880.70 is: 884,395.81
Step by Step Solution
- Step 1: Write the proportion equation
1,157,147.29 : 1,596,827.95 = 640,880.70 : x - Step 2: Convert to fraction form
1,157,147.29/1,596,827.95 = 640,880.70/x - Step 3: Cross multiply
1,157,147.29x = 1,596,827.95 × 640,880.70 - Step 4: Simplify right side
1,157,147.29x = 1,023,376,214,375.57 - Step 5: Solve for x
x = 1,023,376,214,375.57/1,157,147.29 - Step 6: Final answer
x = 884,395.81
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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.