Finding the Fourth Proportional to 1,622,970.47, 2,238,040.63 and 1,079,194.79
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Solution
The fourth proportional to 1,622,970.47, 2,238,040.63 and 1,079,194.79 is: 1,488,185.91
Step by Step Solution
- Step 1: Write the proportion equation
1,622,970.47 : 2,238,040.63 = 1,079,194.79 : x - Step 2: Convert to fraction form
1,622,970.47/2,238,040.63 = 1,079,194.79/x - Step 3: Cross multiply
1,622,970.47x = 2,238,040.63 × 1,079,194.79 - Step 4: Simplify right side
1,622,970.47x = 2,415,281,794,648.41 - Step 5: Solve for x
x = 2,415,281,794,648.41/1,622,970.47 - Step 6: Final answer
x = 1,488,185.91
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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.