Finding the Fourth Proportional to 1,228,710.74, 1,695,628.69 and 684,880.99
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Solution
The fourth proportional to 1,228,710.74, 1,695,628.69 and 684,880.99 is: 945,140.15
Step by Step Solution
- Step 1: Write the proportion equation
1,228,710.74 : 1,695,628.69 = 684,880.99 : x - Step 2: Convert to fraction form
1,228,710.74/1,695,628.69 = 684,880.99/x - Step 3: Cross multiply
1,228,710.74x = 1,695,628.69 × 684,880.99 - Step 4: Simplify right side
1,228,710.74x = 1,161,303,849,928.33 - Step 5: Solve for x
x = 1,161,303,849,928.33/1,228,710.74 - Step 6: Final answer
x = 945,140.15
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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.