Finding the Fourth Proportional to 1,896,649.40, 2,616,582.28 and 1,243,432.26
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Solution
The fourth proportional to 1,896,649.40, 2,616,582.28 and 1,243,432.26 is: 1,715,416.05
Step by Step Solution
- Step 1: Write the proportion equation
1,896,649.40 : 2,616,582.28 = 1,243,432.26 : x - Step 2: Convert to fraction form
1,896,649.40/2,616,582.28 = 1,243,432.26/x - Step 3: Cross multiply
1,896,649.40x = 2,616,582.28 × 1,243,432.26 - Step 4: Simplify right side
1,896,649.40x = 3,253,542,817,896.35 - Step 5: Solve for x
x = 3,253,542,817,896.35/1,896,649.40 - Step 6: Final answer
x = 1,715,416.05
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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.