Finding the Fourth Proportional to 1,426,208.26, 1,968,156.10 and 781,626.92
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Solution
The fourth proportional to 1,426,208.26, 1,968,156.10 and 781,626.92 is: 1,078,638.95
Step by Step Solution
- Step 1: Write the proportion equation
1,426,208.26 : 1,968,156.10 = 781,626.92 : x - Step 2: Convert to fraction form
1,426,208.26/1,968,156.10 = 781,626.92/x - Step 3: Cross multiply
1,426,208.26x = 1,968,156.10 × 781,626.92 - Step 4: Simplify right side
1,426,208.26x = 1,538,363,779,460.14 - Step 5: Solve for x
x = 1,538,363,779,460.14/1,426,208.26 - Step 6: Final answer
x = 1,078,638.95
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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.