Finding the Fourth Proportional to 891,115.30, 1,336,672.95 and 513,201.70
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Solution
The fourth proportional to 891,115.30, 1,336,672.95 and 513,201.70 is: 769,802.55
Step by Step Solution
- Step 1: Write the proportion equation
891,115.30 : 1,336,672.95 = 513,201.70 : x - Step 2: Convert to fraction form
891,115.30/1,336,672.95 = 513,201.70/x - Step 3: Cross multiply
891,115.30x = 1,336,672.95 × 513,201.70 - Step 4: Simplify right side
891,115.30x = 685,982,830,284.02 - Step 5: Solve for x
x = 685,982,830,284.02/891,115.30 - Step 6: Final answer
x = 769,802.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.