Finding the Fourth Proportional to 485,201.70, 727,802.55 and 360,785.70
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Solution
The fourth proportional to 485,201.70, 727,802.55 and 360,785.70 is: 541,178.55
Step by Step Solution
- Step 1: Write the proportion equation
485,201.70 : 727,802.55 = 360,785.70 : x - Step 2: Convert to fraction form
485,201.70/727,802.55 = 360,785.70/x - Step 3: Cross multiply
485,201.70x = 727,802.55 × 360,785.70 - Step 4: Simplify right side
485,201.70x = 262,580,752,463.54 - Step 5: Solve for x
x = 262,580,752,463.54/485,201.70 - Step 6: Final answer
x = 541,178.55
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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.