Finding the Fourth Proportional to 1,426,228.71, 1,968,211.08 and 781,635.03
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Solution
The fourth proportional to 1,426,228.71, 1,968,211.08 and 781,635.03 is: 1,078,664.81
Step by Step Solution
- Step 1: Write the proportion equation
1,426,228.71 : 1,968,211.08 = 781,635.03 : x - Step 2: Convert to fraction form
1,426,228.71/1,968,211.08 = 781,635.03/x - Step 3: Cross multiply
1,426,228.71x = 1,968,211.08 × 781,635.03 - Step 4: Simplify right side
1,426,228.71x = 1,538,422,726,562.13 - Step 5: Solve for x
x = 1,538,422,726,562.13/1,426,228.71 - Step 6: Final answer
x = 1,078,664.81
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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.