Finding the Fourth Proportional to 819,499.74, 1,128,336.20 and 696,750.72
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Solution
The fourth proportional to 819,499.74, 1,128,336.20 and 696,750.72 is: 959,328.02
Step by Step Solution
- Step 1: Write the proportion equation
819,499.74 : 1,128,336.20 = 696,750.72 : x - Step 2: Convert to fraction form
819,499.74/1,128,336.20 = 696,750.72/x - Step 3: Cross multiply
819,499.74x = 1,128,336.20 × 696,750.72 - Step 4: Simplify right side
819,499.74x = 786,169,059,752.06 - Step 5: Solve for x
x = 786,169,059,752.06/819,499.74 - Step 6: Final answer
x = 959,328.02
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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.