Finding the Fourth Proportional to 984,440.20, 1,358,555.70 and 554,696.68
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Solution
The fourth proportional to 984,440.20, 1,358,555.70 and 554,696.68 is: 765,497.32
Step by Step Solution
- Step 1: Write the proportion equation
984,440.20 : 1,358,555.70 = 554,696.68 : x - Step 2: Convert to fraction form
984,440.20/1,358,555.70 = 554,696.68/x - Step 3: Cross multiply
984,440.20x = 1,358,555.70 × 554,696.68 - Step 4: Simplify right side
984,440.20x = 753,586,336,385.08 - Step 5: Solve for x
x = 753,586,336,385.08/984,440.20 - Step 6: Final answer
x = 765,497.32
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1.5x scale
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.