Finding the Fourth Proportional to 1,284,340.76, 1,772,390.20 and 711,417.84
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Solution
The fourth proportional to 1,284,340.76, 1,772,390.20 and 711,417.84 is: 981,756.59
Step by Step Solution
- Step 1: Write the proportion equation
1,284,340.76 : 1,772,390.20 = 711,417.84 : x - Step 2: Convert to fraction form
1,284,340.76/1,772,390.20 = 711,417.84/x - Step 3: Cross multiply
1,284,340.76x = 1,772,390.20 × 711,417.84 - Step 4: Simplify right side
1,284,340.76x = 1,260,910,007,721.17 - Step 5: Solve for x
x = 1,260,910,007,721.17/1,284,340.76 - Step 6: Final answer
x = 981,756.59
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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.