Finding the Fourth Proportional to 1,221,580.80, 1,685,791.68 and 677,752.26
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Solution
The fourth proportional to 1,221,580.80, 1,685,791.68 and 677,752.26 is: 935,303.76
Step by Step Solution
- Step 1: Write the proportion equation
1,221,580.80 : 1,685,791.68 = 677,752.26 : x - Step 2: Convert to fraction form
1,221,580.80/1,685,791.68 = 677,752.26/x - Step 3: Cross multiply
1,221,580.80x = 1,685,791.68 × 677,752.26 - Step 4: Simplify right side
1,221,580.80x = 1,142,549,121,009.20 - Step 5: Solve for x
x = 1,142,549,121,009.20/1,221,580.80 - Step 6: Final answer
x = 935,303.76
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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.