Finding the Fourth Proportional to 787,276.80, 1,105,336.80 and 787,276.80
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Solution
The fourth proportional to 787,276.80, 1,105,336.80 and 787,276.80 is: 1,105,336.80
Step by Step Solution
- Step 1: Write the proportion equation
787,276.80 : 1,105,336.80 = 787,276.80 : x - Step 2: Convert to fraction form
787,276.80/1,105,336.80 = 787,276.80/x - Step 3: Cross multiply
787,276.80x = 1,105,336.80 × 787,276.80 - Step 4: Simplify right side
787,276.80x = 870,206,018,826.24 - Step 5: Solve for x
x = 870,206,018,826.24/787,276.80 - Step 6: Final answer
x = 1,105,336.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.