Finding the Fourth Proportional to 1,426,272.84, 1,968,271.92 and 781,679.16
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Solution
The fourth proportional to 1,426,272.84, 1,968,271.92 and 781,679.16 is: 1,078,725.68
Step by Step Solution
- Step 1: Write the proportion equation
1,426,272.84 : 1,968,271.92 = 781,679.16 : x - Step 2: Convert to fraction form
1,426,272.84/1,968,271.92 = 781,679.16/x - Step 3: Cross multiply
1,426,272.84x = 1,968,271.92 × 781,679.16 - Step 4: Simplify right side
1,426,272.84x = 1,538,557,141,077.19 - Step 5: Solve for x
x = 1,538,557,141,077.19/1,426,272.84 - Step 6: Final answer
x = 1,078,725.68
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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.