Finding the Fourth Proportional to 1,273,043.71, 1,756,303.10 and 728,888.68
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Solution
The fourth proportional to 1,273,043.71, 1,756,303.10 and 728,888.68 is: 1,005,581.69
Step by Step Solution
- Step 1: Write the proportion equation
1,273,043.71 : 1,756,303.10 = 728,888.68 : x - Step 2: Convert to fraction form
1,273,043.71/1,756,303.10 = 728,888.68/x - Step 3: Cross multiply
1,273,043.71x = 1,756,303.10 × 728,888.68 - Step 4: Simplify right side
1,273,043.71x = 1,280,149,448,238.91 - Step 5: Solve for x
x = 1,280,149,448,238.91/1,273,043.71 - Step 6: Final answer
x = 1,005,581.69
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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.