Finding the Fourth Proportional to 1,225,288.84, 1,690,650.36 and 715,892.80
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Solution
The fourth proportional to 1,225,288.84, 1,690,650.36 and 715,892.80 is: 987,787.03
Step by Step Solution
- Step 1: Write the proportion equation
1,225,288.84 : 1,690,650.36 = 715,892.80 : x - Step 2: Convert to fraction form
1,225,288.84/1,690,650.36 = 715,892.80/x - Step 3: Cross multiply
1,225,288.84x = 1,690,650.36 × 715,892.80 - Step 4: Simplify right side
1,225,288.84x = 1,210,324,420,041.41 - Step 5: Solve for x
x = 1,210,324,420,041.41/1,225,288.84 - Step 6: Final answer
x = 987,787.03
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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.