Finding the Fourth Proportional to 1,239,920.28, 1,711,089.08 and 696,057.12
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Solution
The fourth proportional to 1,239,920.28, 1,711,089.08 and 696,057.12 is: 960,558.32
Step by Step Solution
- Step 1: Write the proportion equation
1,239,920.28 : 1,711,089.08 = 696,057.12 : x - Step 2: Convert to fraction form
1,239,920.28/1,711,089.08 = 696,057.12/x - Step 3: Cross multiply
1,239,920.28x = 1,711,089.08 × 696,057.12 - Step 4: Simplify right side
1,239,920.28x = 1,191,015,737,088.25 - Step 5: Solve for x
x = 1,191,015,737,088.25/1,239,920.28 - Step 6: Final answer
x = 960,558.32
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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.