Finding the Fourth Proportional to 1,642,295.68, 2,266,323.84 and 917,123.20
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Solution
The fourth proportional to 1,642,295.68, 2,266,323.84 and 917,123.20 is: 1,265,605.33
Step by Step Solution
- Step 1: Write the proportion equation
1,642,295.68 : 2,266,323.84 = 917,123.20 : x - Step 2: Convert to fraction form
1,642,295.68/2,266,323.84 = 917,123.20/x - Step 3: Cross multiply
1,642,295.68x = 2,266,323.84 × 917,123.20 - Step 4: Simplify right side
1,642,295.68x = 2,078,498,172,377.09 - Step 5: Solve for x
x = 2,078,498,172,377.09/1,642,295.68 - Step 6: Final answer
x = 1,265,605.33
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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.