Finding the Fourth Proportional to 1,332,370, 1,838,699.76 and 728,758
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Solution
The fourth proportional to 1,332,370, 1,838,699.76 and 728,758 is: 1,005,701.99
Step by Step Solution
- Step 1: Write the proportion equation
1,332,370 : 1,838,699.76 = 728,758 : x - Step 2: Convert to fraction form
1,332,370/1,838,699.76 = 728,758/x - Step 3: Cross multiply
1,332,370x = 1,838,699.76 × 728,758 - Step 4: Simplify right side
1,332,370x = 1,339,967,159,698.08 - Step 5: Solve for x
x = 1,339,967,159,698.08/1,332,370 - Step 6: Final answer
x = 1,005,701.99
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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.